Fatto generale: 32 is the number of brains a leech has.
Fatto matematico: 32 is the smallest number n with exactly 7 solutions to the equation φ(x) = n. It is also the sum of the totient function for the first ten integers.
Trivia: 32 is the percentage of employees in the USA who eat lunch and work at the same time.
Data storica: February 1st is the day in 1814 that Mayon Volcano in the Philippines erupts, killing around 1,200 people, the most devastating eruption of the volcano.