Hecho general: 90542 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 90542 is a boring number.
Trivia: 90542 is an uninteresting number.
Fecha histórica: November 23rd is the day in 1499 that Pretender to the throne Perkin Warbeck is hanged for reportedly attempting to escape from the Tower of London.