56388723 has 4 divisors (see below), whose sum is σ = 75184968. Its totient is φ = 37592480.

The previous prime is 56388701. The next prime is 56388733. The reversal of 56388723 is 32788365.

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 56388723 - 2⁵ = 56388691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56388733) 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, 9398118 + ... + 9398123.

It is an arithmetic number, because the mean of its divisors is an integer number (18796242).

Almost surely, 2^56388723 is an apocalyptic number.

56388723 is a deficient number, since it is larger than the sum of its proper divisors (18796245).

56388723 is a wasteful number, since it uses less digits than its factorization.

56388723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18796244.

The product of its digits is 241920, while the sum is 42.

The square root of 56388723 is about 7509.2425050733. The cubic root of 56388723 is about 383.4694346377.

The spelling of 56388723 in words is "fifty-six million, three hundred eighty-eight thousand, seven hundred twenty-three".