56317719 has 16 divisors (see below), whose sum is σ = 79803360. Its totient is φ = 35327360.

The previous prime is 56317717. The next prime is 56317733. The reversal of 56317719 is 91771365.

It is not a de Polignac number, because 56317719 - 2¹ = 56317717 is a prime.

It is a super-2 number, since 2×56317719² = 6343370946725922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56317717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12829 + ... + 16649.

It is an arithmetic number, because the mean of its divisors is an integer number (4987710).

Almost surely, 2^56317719 is an apocalyptic number.

56317719 is a deficient number, since it is larger than the sum of its proper divisors (23485641).

56317719 is an equidigital number, since it uses as much as digits as its factorization.

56317719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3875 (or 3841 counting only the distinct ones).

The product of its digits is 39690, while the sum is 39.

The square root of 56317719 is about 7504.5132420431. The cubic root of 56317719 is about 383.3084136710.

The spelling of 56317719 in words is "fifty-six million, three hundred seventeen thousand, seven hundred nineteen".