56856613 has 8 divisors (see below), whose sum is σ = 62257536. Its totient is φ = 51494400.

The previous prime is 56856601. The next prime is 56856649. The reversal of 56856613 is 31665865.

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

It is a cyclic number.

It is not a de Polignac number, because 56856613 - 2⁵ = 56856581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56856673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6556 + ... + 12517.

It is an arithmetic number, because the mean of its divisors is an integer number (7782192).

Almost surely, 2^56856613 is an apocalyptic number.

It is an amenable number.

56856613 is a deficient number, since it is larger than the sum of its proper divisors (5400923).

56856613 is a wasteful number, since it uses less digits than its factorization.

56856613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19355.

The product of its digits is 129600, while the sum is 40.

The square root of 56856613 is about 7540.3324197279. The cubic root of 56856613 is about 384.5271374575.

The spelling of 56856613 in words is "fifty-six million, eight hundred fifty-six thousand, six hundred thirteen".