56380602917 has 2 divisors, whose sum is σ = 56380602918. Its totient is φ = 56380602916.

The previous prime is 56380602911. The next prime is 56380602931. The reversal of 56380602917 is 71920608365.

It is a Cunningham number, because it is equal to 237446²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56380602916 + 1 = 237446^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 56380602917 - 2⁶ = 56380602853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56380602911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28190301458 + 28190301459.

It is an arithmetic number, because the mean of its divisors is an integer number (28190301459).

Almost surely, 2^56380602917 is an apocalyptic number.

It is an amenable number.

56380602917 is a deficient number, since it is larger than the sum of its proper divisors (1).

56380602917 is an equidigital number, since it uses as much as digits as its factorization.

56380602917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 56380602917 in words is "fifty-six billion, three hundred eighty million, six hundred two thousand, nine hundred seventeen".