56653215277 has 2 divisors, whose sum is σ = 56653215278. Its totient is φ = 56653215276.

The previous prime is 56653215167. The next prime is 56653215313. The reversal of 56653215277 is 77251235665.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40876348041 + 15776867236 = 202179^2 + 125606^2 .

It is a cyclic number.

It is not a de Polignac number, because 56653215277 - 2¹¹ = 56653213229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56653215277.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56653215677) 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, 28326607638 + 28326607639.

It is an arithmetic number, because the mean of its divisors is an integer number (28326607639).

Almost surely, 2^56653215277 is an apocalyptic number.

It is an amenable number.

56653215277 is a deficient number, since it is larger than the sum of its proper divisors (1).

56653215277 is an equidigital number, since it uses as much as digits as its factorization.

56653215277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2646000, while the sum is 49.

The spelling of 56653215277 in words is "fifty-six billion, six hundred fifty-three million, two hundred fifteen thousand, two hundred seventy-seven".