56007431 has 4 divisors (see below), whose sum is σ = 56103432. Its totient is φ = 55911432.

The previous prime is 56007407. The next prime is 56007437. The reversal of 56007431 is 13470065.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56007431 is a prime.

It is a super-2 number, since 2×56007431² = 6273664654439522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56007431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56007437) 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, 47120 + ... + 48293.

It is an arithmetic number, because the mean of its divisors is an integer number (14025858).

Almost surely, 2^56007431 is an apocalyptic number.

56007431 is a deficient number, since it is larger than the sum of its proper divisors (96001).

56007431 is an equidigital number, since it uses as much as digits as its factorization.

56007431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96000.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 56007431 is about 7483.8112616500. The cubic root of 56007431 is about 382.6031584151.

Adding to 56007431 its reverse (13470065), we get a palindrome (69477496).

It can be divided in two parts, 5600 and 7431, that added together give a palindrome (13031).

The spelling of 56007431 in words is "fifty-six million, seven thousand, four hundred thirty-one".