56423407277 has 2 divisors, whose sum is σ = 56423407278. Its totient is φ = 56423407276.

The previous prime is 56423407253. The next prime is 56423407331. The reversal of 56423407277 is 77270432465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30213740041 + 26209667236 = 173821^2 + 161894^2 .

It is a cyclic number.

It is not a de Polignac number, because 56423407277 - 2²⁰ = 56422358701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56423407177) 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, 28211703638 + 28211703639.

It is an arithmetic number, because the mean of its divisors is an integer number (28211703639).

Almost surely, 2^56423407277 is an apocalyptic number.

It is an amenable number.

56423407277 is a deficient number, since it is larger than the sum of its proper divisors (1).

56423407277 is an equidigital number, since it uses as much as digits as its factorization.

56423407277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1975680, while the sum is 47.

The spelling of 56423407277 in words is "fifty-six billion, four hundred twenty-three million, four hundred seven thousand, two hundred seventy-seven".