56279277097 has 2 divisors, whose sum is σ = 56279277098. Its totient is φ = 56279277096.

The previous prime is 56279277031. The next prime is 56279277107. The reversal of 56279277097 is 79077297265.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49220084736 + 7059192361 = 221856^2 + 84019^2 .

It is a cyclic number.

It is not a de Polignac number, because 56279277097 - 2²³ = 56270888489 is a prime.

It is not a weakly prime, because it can be changed into another prime (56279277007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28139638548 + 28139638549.

It is an arithmetic number, because the mean of its divisors is an integer number (28139638549).

Almost surely, 2^56279277097 is an apocalyptic number.

It is an amenable number.

56279277097 is a deficient number, since it is larger than the sum of its proper divisors (1).

56279277097 is an equidigital number, since it uses as much as digits as its factorization.

56279277097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23337720, while the sum is 61.

The spelling of 56279277097 in words is "fifty-six billion, two hundred seventy-nine million, two hundred seventy-seven thousand, ninety-seven".