56399523 has 8 divisors (see below), whose sum is σ = 79622928. Its totient is φ = 35387904.

The previous prime is 56399513. The next prime is 56399527. The reversal of 56399523 is 32599365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56399523 - 2¹⁴ = 56383139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56399527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552886 + ... + 552987.

It is an arithmetic number, because the mean of its divisors is an integer number (9952866).

Almost surely, 2^56399523 is an apocalyptic number.

56399523 is a deficient number, since it is larger than the sum of its proper divisors (23223405).

56399523 is a wasteful number, since it uses less digits than its factorization.

56399523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105893.

The product of its digits is 218700, while the sum is 42.

The square root of 56399523 is about 7509.9615844557. The cubic root of 56399523 is about 383.4939147424.

The spelling of 56399523 in words is "fifty-six million, three hundred ninety-nine thousand, five hundred twenty-three".