56354077397 has 2 divisors, whose sum is σ = 56354077398. Its totient is φ = 56354077396.

The previous prime is 56354077319. The next prime is 56354077511. The reversal of 56354077397 is 79377045365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38682629041 + 17671448356 = 196679^2 + 132934^2 .

It is a cyclic number.

It is not a de Polignac number, because 56354077397 - 2²⁴ = 56337300181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56354074397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28177038698 + 28177038699.

It is an arithmetic number, because the mean of its divisors is an integer number (28177038699).

Almost surely, 2^56354077397 is an apocalyptic number.

It is an amenable number.

56354077397 is a deficient number, since it is larger than the sum of its proper divisors (1).

56354077397 is an equidigital number, since it uses as much as digits as its factorization.

56354077397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16669800, while the sum is 56.

The spelling of 56354077397 in words is "fifty-six billion, three hundred fifty-four million, seventy-seven thousand, three hundred ninety-seven".