56359216513 has 2 divisors, whose sum is σ = 56359216514. Its totient is φ = 56359216512.

The previous prime is 56359216439. The next prime is 56359216523. The reversal of 56359216513 is 31561295365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55741793409 + 617423104 = 236097^2 + 24848^2 .

It is a cyclic number.

It is not a de Polignac number, because 56359216513 - 2²¹ = 56357119361 is a prime.

It is a super-2 number, since 2×56359216513² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56359216523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28179608256 + 28179608257.

It is an arithmetic number, because the mean of its divisors is an integer number (28179608257).

Almost surely, 2^56359216513 is an apocalyptic number.

It is an amenable number.

56359216513 is a deficient number, since it is larger than the sum of its proper divisors (1).

56359216513 is an equidigital number, since it uses as much as digits as its factorization.

56359216513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 729000, while the sum is 46.

The spelling of 56359216513 in words is "fifty-six billion, three hundred fifty-nine million, two hundred sixteen thousand, five hundred thirteen".