56356613 has 2 divisors, whose sum is σ = 56356614. Its totient is φ = 56356612.

The previous prime is 56356583. The next prime is 56356627. The reversal of 56356613 is 31665365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51595489 + 4761124 = 7183^2 + 2182^2 .

It is a cyclic number.

It is not a de Polignac number, because 56356613 - 2⁶ = 56356549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56356633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28178306 + 28178307.

It is an arithmetic number, because the mean of its divisors is an integer number (28178307).

Almost surely, 2^56356613 is an apocalyptic number.

It is an amenable number.

56356613 is a deficient number, since it is larger than the sum of its proper divisors (1).

56356613 is an equidigital number, since it uses as much as digits as its factorization.

56356613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 35.

The square root of 56356613 is about 7507.1041687191. The cubic root of 56356613 is about 383.3966331930.

The spelling of 56356613 in words is "fifty-six million, three hundred fifty-six thousand, six hundred thirteen".