56031807 has 16 divisors (see below), whose sum is σ = 81562208. Its totient is φ = 34007040.

The previous prime is 56031803. The next prime is 56031821. The reversal of 56031807 is 70813065.

It is not a de Polignac number, because 56031807 - 2² = 56031803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56031803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6994 + ... + 12687.

It is an arithmetic number, because the mean of its divisors is an integer number (5097638).

Almost surely, 2^56031807 is an apocalyptic number.

56031807 is a deficient number, since it is larger than the sum of its proper divisors (25530401).

56031807 is a wasteful number, since it uses less digits than its factorization.

56031807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19770.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 56031807 is about 7485.4396664458. The cubic root of 56031807 is about 382.6586568952.

The spelling of 56031807 in words is "fifty-six million, thirty-one thousand, eight hundred seven".