Fait général: 18525 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 18525 is an uninteresting number.
Culture générale: 18525 is an unremarkable number.
Date historique: September 19th is the day in 1940 that Witold Pilecki is voluntarily captured and sent to Auschwitz in order to smuggle out information and start a resistance.