55957572 has 36 divisors (see below), whose sum is σ = 154308336. Its totient is φ = 16956720.

The previous prime is 55957541. The next prime is 55957607. The reversal of 55957572 is 27575955.

55957572 is a `hidden beast` number, since 5 + 5 + 9 + 575 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70258 + ... + 71049.

Almost surely, 2^55957572 is an apocalyptic number.

It is an amenable number.

55957572 is an abundant number, since it is smaller than the sum of its proper divisors (98350764).

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

55957572 is a wasteful number, since it uses less digits than its factorization.

55957572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141328 (or 141323 counting only the distinct ones).

The product of its digits is 551250, while the sum is 45.

The square root of 55957572 is about 7480.4793964023. The cubic root of 55957572 is about 382.4895908996.

The spelling of 55957572 in words is "fifty-five million, nine hundred fifty-seven thousand, five hundred seventy-two".