Since there are no qualifications, the objective answer to your question is yes.
The part that DOES make him qualified is his background in dealing with money. The US is in a tremendous debt, and before his presidency there were not enough jobs. There has been a large increase in jobs during his presidency, and this can be largely attributed to the aforementioned background.
He has been on both sides of every issue, sometimes more than once in one day. He can't make up his mind about important things and has no real solution for America's problems. Hillary Clinton also doesn't have solutions, but at least she has some experience. Donald Trump has neither.