55537200 has 90 divisors (see below), whose sum is σ = 192742004. Its totient is φ = 14808960.

The previous prime is 55537189. The next prime is 55537241. The reversal of 55537200 is 273555.

It is a tau number, because it is divible by the number of its divisors (90).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4114 + ... + 11313.

Almost surely, 2^55537200 is an apocalyptic number.

55537200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55537200 is an abundant number, since it is smaller than the sum of its proper divisors (137204804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55537200 is a wasteful number, since it uses less digits than its factorization.

55537200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15451 (or 15437 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 55537200 is about 7452.3284951752. The cubic root of 55537200 is about 381.5293858236.

The spelling of 55537200 in words is "fifty-five million, five hundred thirty-seven thousand, two hundred".