56261368279 has 2 divisors, whose sum is σ = 56261368280. Its totient is φ = 56261368278.

The previous prime is 56261368271. The next prime is 56261368297. The reversal of 56261368279 is 97286316265.

Together with next prime (56261368297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56261368279 - 2³ = 56261368271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56261368271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28130684139 + 28130684140.

It is an arithmetic number, because the mean of its divisors is an integer number (28130684140).

Almost surely, 2^56261368279 is an apocalyptic number.

56261368279 is a deficient number, since it is larger than the sum of its proper divisors (1).

56261368279 is an equidigital number, since it uses as much as digits as its factorization.

56261368279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 55.

The spelling of 56261368279 in words is "fifty-six billion, two hundred sixty-one million, three hundred sixty-eight thousand, two hundred seventy-nine".