Fatto generale: 52742 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 52742 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 52742 is a boring number.
Data storica: May 26th is the day in 1135 that Alfonso VII of León and Castile is crowned in the Cathedral of Leon as Imperator totius Hispaniae, "Emperor of all of Spain".