56131560319 has 2 divisors, whose sum is σ = 56131560320. Its totient is φ = 56131560318.

The previous prime is 56131560281. The next prime is 56131560341. The reversal of 56131560319 is 91306513165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56131560319 - 2²³ = 56123171711 is a prime.

It is a super-2 number, since 2×56131560319² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56131560349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28065780159 + 28065780160.

It is an arithmetic number, because the mean of its divisors is an integer number (28065780160).

Almost surely, 2^56131560319 is an apocalyptic number.

56131560319 is a deficient number, since it is larger than the sum of its proper divisors (1).

56131560319 is an equidigital number, since it uses as much as digits as its factorization.

56131560319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72900, while the sum is 40.

The spelling of 56131560319 in words is "fifty-six billion, one hundred thirty-one million, five hundred sixty thousand, three hundred nineteen".