The Grove Press edition of Margeurite Duras’s The Malady of Death (1982, English trans. 1986) is 64 pages long, and roughly 5000 words. It says “A Novel” on the front. At most, there are one-hundred words on any given page.
At the time, Duras stood somewhat alone. But today it’s not uncommon to see novels that are 10,000 words or less, and that run under 100 pages (although typesetting usually keeps them over 50). Not to mention that many novels that are under 20,000 words long.
So: How long is a novel, in your opinion? How many pages, how many words?