56239313 has 24 divisors (see below), whose sum is σ = 63771840. Its totient is φ = 49533120.

The previous prime is 56239291. The next prime is 56239319. The reversal of 56239313 is 31393265.

It is not a de Polignac number, because 56239313 - 2¹² = 56235217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56239313.

It is not an unprimeable number, because it can be changed into a prime (56239319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 515903 + ... + 516011.

It is an arithmetic number, because the mean of its divisors is an integer number (2657160).

Almost surely, 2^56239313 is an apocalyptic number.

It is an amenable number.

56239313 is a deficient number, since it is larger than the sum of its proper divisors (7532527).

56239313 is a wasteful number, since it uses less digits than its factorization.

56239313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 236 counting only the distinct ones).

The product of its digits is 14580, while the sum is 32.

The square root of 56239313 is about 7499.2874994895. The cubic root of 56239313 is about 383.1304493298.

The spelling of 56239313 in words is "fifty-six million, two hundred thirty-nine thousand, three hundred thirteen".