56388805 has 16 divisors (see below), whose sum is σ = 74556288. Its totient is φ = 40600000.

The previous prime is 56388803. The next prime is 56388811. The reversal of 56388805 is 50888365.

It is not a de Polignac number, because 56388805 - 2¹ = 56388803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56388803) 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, 480 + ... + 10630.

It is an arithmetic number, because the mean of its divisors is an integer number (4659768).

Almost surely, 2^56388805 is an apocalyptic number.

56388805 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56388805 is a deficient number, since it is larger than the sum of its proper divisors (18167483).

56388805 is a wasteful number, since it uses less digits than its factorization.

56388805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10268.

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 56388805 is about 7509.2479650095. The cubic root of 56388805 is about 383.4696205169.

The spelling of 56388805 in words is "fifty-six million, three hundred eighty-eight thousand, eight hundred five".