56915803 has 6 divisors (see below), whose sum is σ = 66208236. Its totient is φ = 48784932.

The previous prime is 56915753. The next prime is 56915809. The reversal of 56915803 is 30851965.

It is not a de Polignac number, because 56915803 - 2⁹ = 56915291 is a prime.

It is a super-2 number, since 2×56915803² = 6478817262269618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56915809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 580725 + ... + 580822.

It is an arithmetic number, because the mean of its divisors is an integer number (11034706).

Almost surely, 2^56915803 is an apocalyptic number.

56915803 is a deficient number, since it is larger than the sum of its proper divisors (9292433).

56915803 is a wasteful number, since it uses less digits than its factorization.

56915803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161561 (or 1161554 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 56915803 is about 7544.2562920410. The cubic root of 56915803 is about 384.6605272050.

The spelling of 56915803 in words is "fifty-six million, nine hundred fifteen thousand, eight hundred three".