56225172 has 12 divisors (see below), whose sum is σ = 131192096. Its totient is φ = 18741720.

The previous prime is 56225159. The next prime is 56225189. The reversal of 56225172 is 27152265.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×56225172² = 6322539932859168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2342704 + ... + 2342727.

Almost surely, 2^56225172 is an apocalyptic number.

It is an amenable number.

56225172 is an abundant number, since it is smaller than the sum of its proper divisors (74966924).

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

56225172 is a wasteful number, since it uses less digits than its factorization.

56225172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4685438 (or 4685436 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 56225172 is about 7498.3446173139. The cubic root of 56225172 is about 383.0983347730.

The spelling of 56225172 in words is "fifty-six million, two hundred twenty-five thousand, one hundred seventy-two".