56785239 has 32 divisors (see below), whose sum is σ = 97111040. Its totient is φ = 32122656.

The previous prime is 56785231. The next prime is 56785283. The reversal of 56785239 is 93258765.

It is a happy number.

56785239 is a `hidden beast` number, since 56 + 78 + 523 + 9 = 666.

It is not a de Polignac number, because 56785239 - 2³ = 56785231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56785194 and 56785203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56785231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18009 + ... + 20925.

It is an arithmetic number, because the mean of its divisors is an integer number (3034720).

Almost surely, 2^56785239 is an apocalyptic number.

56785239 is a deficient number, since it is larger than the sum of its proper divisors (40325801).

56785239 is a wasteful number, since it uses less digits than its factorization.

56785239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036 (or 3030 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 56785239 is about 7535.5981182651. The cubic root of 56785239 is about 384.3661668404.

The spelling of 56785239 in words is "fifty-six million, seven hundred eighty-five thousand, two hundred thirty-nine".