No,Satan is not a man.
Donald Trump is not Satan.
He might seem like it to a lot of people but he's not really Satan himself.
The man of sin is not a man either. It is a title given to Satan who appears as a man.
Do you not understand that angels appear as human men when they come to earth? Satan was described as the king of Tyre in the OT. In the NT, Satan is the man of sin. That is not a man, but Satan working with humans since Paul said that man of sin was already at work.
In Revelation, John said that Satan's "throne" was in Pergamos.
"And to the angel of the church in Pergamos write; These things saith he which hath the sharp sword with two edges; I know thy works, and where thou dwellest, even where Satan's seat is:"
This city involved both the Greek and Roman empires at the transfer of the third and fourth kingdoms in Daniel 2. Why is it hard to see how Satan was working behind the scenes all the time including the establishment of the ten toes kingdom, the 5th kingdom/historical head? The Dragon in Revelation 12 is the same as the sea beast in Revelation 13, and the scarlet colored beast in Revelation 17, from different perspectives.
The five heads are the 5 kingdoms from Daniel 2. We are currently in the 6th head time period, and that head has a mortal wound that will be healed after the Second Coming, in the 6th Seal, by Satan in opposition to Jesus and His angels being on the earth. After the 6th Seal, Satan will not have to hide in the shadows deceiving people. He will be out and about deceiving people.
"And I beheld another beast coming up out of the earth; and he had two horns like a lamb, and he spake as a dragon. And he exerciseth all the power of the first beast before him, and causeth the earth and them which dwell therein to worship the first beast, whose deadly wound was healed."
Satan has all the same power and authority because he is part of the dragon, sea beast, and scarlet colored beast.
Satan's wants people to join the 6th kingdom and pledge their allegiance to Satan like all leaders who want people to vote for them in modern day elections. Those running for president don't usually present just themselves as great, they want people to support their type of government and nation, and then take all the credit and glory once in office. Satan is not the ruler at this point, just promoting his form of government over that of Jesus Christ.
Have you noticed the repeat of history that Satan is doing the same thing Nebuchadnezzar did in setting up an image and then telling every one to worship that image, removing all the credit from God who gave him the dream in the first place. Now Satan has humans setting up an image of their humanity and they were told by Satan to worship that humanity instead of listening to Jesus and the 144k.
That is what Jesus said in Matthew 13:37-38
"He answered and said unto them, He that soweth the good seed is the Son of man; The field is the world; the good seed are the children of the kingdom; but the tares are the children of the wicked one; The enemy that sowed them is the devil; the harvest is the end of the world."
Jesus is on the earth actively sowing the Gospel, while Satan is actively sowing self worship, which will lead to worshipping Satan and receiving the mark, instead of being the wheat and receiving eternal life. Satan is the 7th head. Satan is the beast that was, is not, and will be, because he is of the 7 heads.
"And the beast that was, and is not, even he is the eighth, and is of the seven, and goeth into perdition."
"the beast that ascendeth out of the bottomless pit shall make war against them, and shall overcome them, and kill them."
"And I beheld another beast coming up out of the earth; and he had two horns like a lamb, and he spake as a dragon."
"Let no man deceive you by any means: for that day shall not come, except there come a falling away first, and that man of sin be revealed, the son of perdition; Who opposeth and exalteth himself above all that is called God, or that is worshipped; so that he as God sitteth in the temple of God, shewing himself that he is God."
All these verses are referring to Satan. Satan has been at work for thousands of years turning men's hearts against God.