56574881 has 12 divisors (see below), whose sum is σ = 62429136. Its totient is φ = 51230520.

The previous prime is 56574863. The next prime is 56574883. The reversal of 56574881 is 18847565.

It is a happy number.

It is not a de Polignac number, because 56574881 - 2¹⁰ = 56573857 is a prime.

It is a super-2 number, since 2×56574881² = 6401434320328322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56574883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36386 + ... + 37908.

It is an arithmetic number, because the mean of its divisors is an integer number (5202428).

Almost surely, 2^56574881 is an apocalyptic number.

It is an amenable number.

56574881 is a deficient number, since it is larger than the sum of its proper divisors (5854255).

56574881 is a wasteful number, since it uses less digits than its factorization.

56574881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852 (or 1841 counting only the distinct ones).

The product of its digits is 268800, while the sum is 44.

The square root of 56574881 is about 7521.6275499389. The cubic root of 56574881 is about 383.8909579893.

The spelling of 56574881 in words is "fifty-six million, five hundred seventy-four thousand, eight hundred eighty-one".