56571925 has 6 divisors (see below), whose sum is σ = 70149218. Its totient is φ = 45257520.

The previous prime is 56571917. The next prime is 56571941. The reversal of 56571925 is 52917565.

It can be written as a sum of positive squares in 3 ways, for example, as 15944049 + 40627876 = 3993^2 + 6374^2 .

It is not a de Polignac number, because 56571925 - 2³ = 56571917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1131414 + ... + 1131463.

Almost surely, 2^56571925 is an apocalyptic number.

It is an amenable number.

56571925 is a deficient number, since it is larger than the sum of its proper divisors (13577293).

56571925 is a wasteful number, since it uses less digits than its factorization.

56571925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262887 (or 2262882 counting only the distinct ones).

The product of its digits is 94500, while the sum is 40.

The square root of 56571925 is about 7521.4310473473. The cubic root of 56571925 is about 383.8842718569.

The spelling of 56571925 in words is "fifty-six million, five hundred seventy-one thousand, nine hundred twenty-five".