56312719 has 2 divisors, whose sum is σ = 56312720. Its totient is φ = 56312718.

The previous prime is 56312657. The next prime is 56312731. The reversal of 56312719 is 91721365.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56312719 - 2¹⁷ = 56181647 is a prime.

It is a super-2 number, since 2×56312719² = 6342244642345922, which contains 22 as substring.

It is equal to p_3355927 and since 56312719 and 3355927 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56312749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28156359 + 28156360.

It is an arithmetic number, because the mean of its divisors is an integer number (28156360).

Almost surely, 2^56312719 is an apocalyptic number.

56312719 is a deficient number, since it is larger than the sum of its proper divisors (1).

56312719 is an equidigital number, since it uses as much as digits as its factorization.

56312719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 34.

The square root of 56312719 is about 7504.1801017833. The cubic root of 56312719 is about 383.2970697054.

The spelling of 56312719 in words is "fifty-six million, three hundred twelve thousand, seven hundred nineteen".