56310557 has 2 divisors, whose sum is σ = 56310558. Its totient is φ = 56310556.

The previous prime is 56310517. The next prime is 56310641. The reversal of 56310557 is 75501365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34975396 + 21335161 = 5914^2 + 4619^2 .

It is a cyclic number.

It is not a de Polignac number, because 56310557 - 2⁶ = 56310493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56310517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28155278 + 28155279.

It is an arithmetic number, because the mean of its divisors is an integer number (28155279).

Almost surely, 2^56310557 is an apocalyptic number.

It is an amenable number.

56310557 is a deficient number, since it is larger than the sum of its proper divisors (1).

56310557 is an equidigital number, since it uses as much as digits as its factorization.

56310557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 56310557 is about 7504.0360473548. The cubic root of 56310557 is about 383.2921643668.

The spelling of 56310557 in words is "fifty-six million, three hundred ten thousand, five hundred fifty-seven".