Interesting. I'm sure I read somewhere the minimum for a novel is 60,000 words. Is that wrong?
Yes, that's wrong. Different publishers ask for different lengths according to exactly the kid of novel they want, and the audience it's aimed at, but there's is a specific length for every type of fiction.
short short--1,000--2,000 words.
Short Story--2,000--7,500 words.
Novelette--7,500--15,000 words. (7,500--17,500 words in SF and fantasy.)
Novella--15,000 to 30,000 words. (17,500--40,000 words in SF and fantasy)
Novel--anything over 30,000 words. (Anything over 40,000 words in SF and fantasy.)
These are not set because of contests or awards. The lengths were set many, many decades ago because of how magazines are put together; the way space can be divided into a magazine of a certain size while still allowing a number of different story lengths.
But there's also a content factor. While there are similarities, each of these lengths requires a different skill set. A short story is not written quite the way a novelette is written, a novelette is not written quite the way a novella is written, etc.
It goes back to tech old saw that a novel is not just a really long short story. It's true, and a novelette and a novella are not just long short stories, either.