56603731 has 2 divisors, whose sum is σ = 56603732. Its totient is φ = 56603730.

The previous prime is 56603711. The next prime is 56603777. The reversal of 56603731 is 13730665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56603731 - 2¹⁵ = 56570963 is a prime.

It is a super-2 number, since 2×56603731² = 6407964726240722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56603693 and 56603702.

It is not a weakly prime, because it can be changed into another prime (56603711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28301865 + 28301866.

It is an arithmetic number, because the mean of its divisors is an integer number (28301866).

Almost surely, 2^56603731 is an apocalyptic number.

56603731 is a deficient number, since it is larger than the sum of its proper divisors (1).

56603731 is an equidigital number, since it uses as much as digits as its factorization.

56603731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 56603731 is about 7523.5451085243. The cubic root of 56603731 is about 383.9562011496.

The spelling of 56603731 in words is "fifty-six million, six hundred three thousand, seven hundred thirty-one".