56931719 has 8 divisors (see below), whose sum is σ = 61631472. Its totient is φ = 52277760.

The previous prime is 56931713. The next prime is 56931731. The reversal of 56931719 is 91713965.

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 56931719 - 2⁴ = 56931703 is a prime.

It is a super-2 number, since 2×56931719² = 6482441256589922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56931713) 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, 8837 + ... + 13854.

It is an arithmetic number, because the mean of its divisors is an integer number (7703934).

Almost surely, 2^56931719 is an apocalyptic number.

56931719 is a deficient number, since it is larger than the sum of its proper divisors (4699753).

56931719 is a wasteful number, since it uses less digits than its factorization.

56931719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22897.

The product of its digits is 51030, while the sum is 41.

The square root of 56931719 is about 7545.3110605196. The cubic root of 56931719 is about 384.6963794993.

The spelling of 56931719 in words is "fifty-six million, nine hundred thirty-one thousand, seven hundred nineteen".