Fatto generale: 2532 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 2532 is 2222 + 55 + 33 + 222.
Trivia: 2532 is an uninteresting number.
Data storica: December 6th is the day in 1877 that Thomas Edison, using his new phonograph, makes one of the earliest recordings of a human voice, reciting "Mary Had a Little Lamb".