general_fact: 52558 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 52558 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 52558 is an unremarkable number.
historical_date: November 24th is the day in 1962 that the West Berlin branch of the Socialist Unity Party of Germany forms a separate party, the Socialist Unity Party of West Berlin.