56524581 has 8 divisors (see below), whose sum is σ = 83740160. Its totient is φ = 37683036.

The previous prime is 56524571. The next prime is 56524603. The reversal of 56524581 is 18542565.

56524581 is a `hidden beast` number, since 56 + 5 + 24 + 581 = 666.

It is not a de Polignac number, because 56524581 - 2⁷ = 56524453 is a prime.

It is a super-2 number, since 2×56524581² = 6390056514451122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56524511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1046725 + ... + 1046778.

It is an arithmetic number, because the mean of its divisors is an integer number (10467520).

Almost surely, 2^56524581 is an apocalyptic number.

It is an amenable number.

56524581 is a deficient number, since it is larger than the sum of its proper divisors (27215579).

56524581 is a wasteful number, since it uses less digits than its factorization.

56524581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093512 (or 2093506 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 56524581 is about 7518.2831151800. The cubic root of 56524581 is about 383.7771534154. Note that the first 3 decimals are identical.

The spelling of 56524581 in words is "fifty-six million, five hundred twenty-four thousand, five hundred eighty-one".