Fatto generale: 85425 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 85425 is an unremarkable number.
Trivia: 85425 is an unremarkable number.
Data storica: November 19th is the day in 2010 that the first of four explosions takes place at the Pike River Mine in New Zealand; 29 people are killed in the nation's worst mining disaster since 1914.