56800521 has 12 divisors (see below), whose sum is σ = 85084272. Its totient is φ = 37866852.

The previous prime is 56800517. The next prime is 56800537. The reversal of 56800521 is 12500865.

It is not a de Polignac number, because 56800521 - 2² = 56800517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56800511) 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, 116631 + ... + 117116.

It is an arithmetic number, because the mean of its divisors is an integer number (7090356).

Almost surely, 2^56800521 is an apocalyptic number.

It is an amenable number.

56800521 is a deficient number, since it is larger than the sum of its proper divisors (28283751).

56800521 is an equidigital number, since it uses as much as digits as its factorization.

56800521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233762 (or 233750 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 56800521 is about 7536.6120372486. The cubic root of 56800521 is about 384.4006438572.

The spelling of 56800521 in words is "fifty-six million, eight hundred thousand, five hundred twenty-one".