56903811 has 12 divisors (see below), whose sum is σ = 80598552. Its totient is φ = 35703808.

The previous prime is 56903809. The next prime is 56903813. The reversal of 56903811 is 11830965.

It is an interprime number because it is at equal distance from previous prime (56903809) and next prime (56903813).

It is not a de Polignac number, because 56903811 - 2¹ = 56903809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56903813) 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, 31950 + ... + 33683.

It is an arithmetic number, because the mean of its divisors is an integer number (6716546).

Almost surely, 2^56903811 is an apocalyptic number.

56903811 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

56903811 is a deficient number, since it is larger than the sum of its proper divisors (23694741).

56903811 is a wasteful number, since it uses less digits than its factorization.

56903811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65670 (or 65653 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 56903811 is about 7543.4614733556. The cubic root of 56903811 is about 384.6335096761.

The spelling of 56903811 in words is "fifty-six million, nine hundred three thousand, eight hundred eleven".