56556564825 has 12 divisors (see below), whose sum is σ = 93506853968. Its totient is φ = 30163501200.

The previous prime is 56556564797. The next prime is 56556564847. The reversal of 56556564825 is 52846565565.

It is not a de Polignac number, because 56556564825 - 2⁸ = 56556564569 is a prime.

It is a super-3 number, since 3×56556564825³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 377043691 + ... + 377043840.

Almost surely, 2^56556564825 is an apocalyptic number.

It is an amenable number.

56556564825 is a deficient number, since it is larger than the sum of its proper divisors (36950289143).

56556564825 is a wasteful number, since it uses less digits than its factorization.

56556564825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754087544 (or 754087539 counting only the distinct ones).

The product of its digits is 43200000, while the sum is 57.

The spelling of 56556564825 in words is "fifty-six billion, five hundred fifty-six million, five hundred sixty-four thousand, eight hundred twenty-five".