56715031 has 4 divisors (see below), whose sum is σ = 57561592. Its totient is φ = 55868472.

The previous prime is 56714971. The next prime is 56715049. The reversal of 56715031 is 13051765.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56715031 - 2²¹ = 54617879 is a prime.

It is a super-2 number, since 2×56715031² = 6433189482661922, 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 (56715091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423180 + ... + 423313.

It is an arithmetic number, because the mean of its divisors is an integer number (14390398).

Almost surely, 2^56715031 is an apocalyptic number.

56715031 is a deficient number, since it is larger than the sum of its proper divisors (846561).

56715031 is an equidigital number, since it uses as much as digits as its factorization.

56715031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846560.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 56715031 is about 7530.9382549587. The cubic root of 56715031 is about 384.2076942666.

Adding to 56715031 its reverse (13051765), we get a palindrome (69766796).

The spelling of 56715031 in words is "fifty-six million, seven hundred fifteen thousand, thirty-one".