Fatto generale: 56542 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 56542 is a boring number.
Trivia: 56542 is an uninteresting number.
Data storica: October 21st is the day in 1971 that a gas explosion kills 22 people at a shopping centre in Clarkston, East Renfrewshire, near Glasgow, Scotland.