55972252 has 24 divisors (see below), whose sum is σ = 117837440. Its totient is φ = 22725360.

The previous prime is 55972243. The next prime is 55972277. The reversal of 55972252 is 25227955.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52074 + ... + 53137.

Almost surely, 2^55972252 is an apocalyptic number.

It is an amenable number.

55972252 is an abundant number, since it is smaller than the sum of its proper divisors (61865188).

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

55972252 is a wasteful number, since it uses less digits than its factorization.

55972252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105241 (or 105239 counting only the distinct ones).

The product of its digits is 63000, while the sum is 37.

The square root of 55972252 is about 7481.4605525927. The cubic root of 55972252 is about 382.5230356212.

The spelling of 55972252 in words is "fifty-five million, nine hundred seventy-two thousand, two hundred fifty-two".