56956839 has 8 divisors (see below), whose sum is σ = 77012352. Its totient is φ = 37436280.

The previous prime is 56956819. The next prime is 56956847. The reversal of 56956839 is 93865965.

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

It is not a de Polignac number, because 56956839 - 2⁹ = 56956327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56956791 and 56956800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56956819) 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, 133489 + ... + 133914.

It is an arithmetic number, because the mean of its divisors is an integer number (9626544).

Almost surely, 2^56956839 is an apocalyptic number.

56956839 is a deficient number, since it is larger than the sum of its proper divisors (20055513).

56956839 is a wasteful number, since it uses less digits than its factorization.

56956839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267477.

The product of its digits is 1749600, while the sum is 51.

The square root of 56956839 is about 7546.9754869086. The cubic root of 56956839 is about 384.7529510806.

The spelling of 56956839 in words is "fifty-six million, nine hundred fifty-six thousand, eight hundred thirty-nine".