56755031 has 4 divisors (see below), whose sum is σ = 57317064. Its totient is φ = 56193000.

The previous prime is 56755021. The next prime is 56755037. The reversal of 56755031 is 13055765.

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 56755031 - 2⁶ = 56754967 is a prime.

It is a super-2 number, since 2×56755031² = 6442267087621922, 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 (56755037) 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, 280865 + ... + 281066.

It is an arithmetic number, because the mean of its divisors is an integer number (14329266).

Almost surely, 2^56755031 is an apocalyptic number.

56755031 is a deficient number, since it is larger than the sum of its proper divisors (562033).

56755031 is a wasteful number, since it uses less digits than its factorization.

56755031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562032.

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 56755031 is about 7533.5934984574. The cubic root of 56755031 is about 384.2979977595.

The spelling of 56755031 in words is "fifty-six million, seven hundred fifty-five thousand, thirty-one".