Fatto matematico: 85591 is an uninteresting number.
Trivia: 85591 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: May 4th is the day in 2002 that an EAS Airlines BAC 1-11-500 crashes in a suburb of Kano, Nigeria shortly after takeoff killing more than 148 people.