Hecho general: 64425 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 64425 is a boring number.
Trivia: 64425 is an uninteresting number.
Fecha histórica: May 21st is the day in 1924 that University of Chicago students Richard Loeb and Nathan Leopold, Jr. murder 14-year-old Bobby Franks in a "thrill killing".