56407031 has 4 divisors (see below), whose sum is σ = 56424864. Its totient is φ = 56389200.

The previous prime is 56407019. The next prime is 56407061. The reversal of 56407031 is 13070465.

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 56407031 - 2⁶ = 56406967 is a prime.

It is a super-2 number, since 2×56407031² = 6363506292469922, 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 (56407061) 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, 2750 + ... + 10971.

It is an arithmetic number, because the mean of its divisors is an integer number (14106216).

Almost surely, 2^56407031 is an apocalyptic number.

56407031 is a deficient number, since it is larger than the sum of its proper divisors (17833).

56407031 is a wasteful number, since it uses less digits than its factorization.

56407031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17832.

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

The square root of 56407031 is about 7510.4614372221. The cubic root of 56407031 is about 383.5109311070.

Adding to 56407031 its reverse (13070465), we get a palindrome (69477496).

The spelling of 56407031 in words is "fifty-six million, four hundred seven thousand, thirty-one".