56380872277 has 2 divisors, whose sum is σ = 56380872278. Its totient is φ = 56380872276.

The previous prime is 56380872263. The next prime is 56380872293. The reversal of 56380872277 is 77227808365.

56380872277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56380602916 + 269361 = 237446^2 + 519^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56380872277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56380872257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28190436138 + 28190436139.

It is an arithmetic number, because the mean of its divisors is an integer number (28190436139).

Almost surely, 2^56380872277 is an apocalyptic number.

It is an amenable number.

56380872277 is a deficient number, since it is larger than the sum of its proper divisors (1).

56380872277 is an equidigital number, since it uses as much as digits as its factorization.

56380872277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7902720, while the sum is 55.

The spelling of 56380872277 in words is "fifty-six billion, three hundred eighty million, eight hundred seventy-two thousand, two hundred seventy-seven".