general_fact: 55587 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 55587 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 55587 is an uninteresting number.
historical_date: March 10th is the day in 1933 that an earthquake in Long Beach, California kills 115 people and causes an estimated $40 million dollars in damage.