General fact: 51085 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 51085 is an uninteresting number.
Trivia: 51085 is an uninteresting number.
Historical date: November 12th is the day in 1970 that the Oregon Highway Division attempts to destroy a rotting beached Sperm whale with explosives, leading to the now infamous "exploding whale" incident.