56180817 has 64 divisors (see below), whose sum is σ = 105707520. Its totient is φ = 28641600.

The previous prime is 56180797. The next prime is 56180819. The reversal of 56180817 is 71808165.

56180817 is a `hidden beast` number, since 561 + 80 + 8 + 17 = 666.

It is not a de Polignac number, because 56180817 - 2⁸ = 56180561 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (56180819) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 126598 + ... + 127040.

It is an arithmetic number, because the mean of its divisors is an integer number (1651680).

Almost surely, 2^56180817 is an apocalyptic number.

It is an amenable number.

56180817 is a deficient number, since it is larger than the sum of its proper divisors (49526703).

56180817 is a wasteful number, since it uses less digits than its factorization.

56180817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 56180817 is about 7495.3863809680. The cubic root of 56180817 is about 382.9975685366.

The spelling of 56180817 in words is "fifty-six million, one hundred eighty thousand, eight hundred seventeen".