56733431 has 4 divisors (see below), whose sum is σ = 56757192. Its totient is φ = 56709672.

The previous prime is 56733427. The next prime is 56733461. The reversal of 56733431 is 13433765.

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 56733431 - 2² = 56733427 is a prime.

It is a super-2 number, since 2×56733431² = 6437364386063522, 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 (56733401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7841 + ... + 13226.

It is an arithmetic number, because the mean of its divisors is an integer number (14189298).

Almost surely, 2^56733431 is an apocalyptic number.

56733431 is a deficient number, since it is larger than the sum of its proper divisors (23761).

56733431 is a wasteful number, since it uses less digits than its factorization.

56733431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23760.

The product of its digits is 22680, while the sum is 32.

The square root of 56733431 is about 7532.1597832229. The cubic root of 56733431 is about 384.2492391450.

The spelling of 56733431 in words is "fifty-six million, seven hundred thirty-three thousand, four hundred thirty-one".