Fait général: 6527 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 6527 is a value of n for which f(n) = f(n-1) + f(n-2).
Culture générale: 6527 is a boring number.
Date historique: November 13th is the day in 1841 that James Braid first sees a demonstration of animal magnetism, which leads to his study of the subject he eventually calls hypnotism.