56457272 has 32 divisors (see below), whose sum is σ = 116964000. Its totient is φ = 25411584.

The previous prime is 56457259. The next prime is 56457307. The reversal of 56457272 is 27275465.

It is a happy number.

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, 5897 + ... + 12152.

It is an arithmetic number, because the mean of its divisors is an integer number (3655125).

Almost surely, 2^56457272 is an apocalyptic number.

It is an amenable number.

56457272 is an abundant number, since it is smaller than the sum of its proper divisors (60506728).

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

56457272 is a wasteful number, since it uses less digits than its factorization.

56457272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18095 (or 18091 counting only the distinct ones).

The product of its digits is 117600, while the sum is 38.

The square root of 56457272 is about 7513.8054273451. The cubic root of 56457272 is about 383.6247600311.

The spelling of 56457272 in words is "fifty-six million, four hundred fifty-seven thousand, two hundred seventy-two".