56558634523 has 2 divisors, whose sum is σ = 56558634524. Its totient is φ = 56558634522.

The previous prime is 56558634497. The next prime is 56558634527. The reversal of 56558634523 is 32543685565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56558634523 - 2¹⁷ = 56558503451 is a prime.

It is not a weakly prime, because it can be changed into another prime (56558634527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28279317261 + 28279317262.

It is an arithmetic number, because the mean of its divisors is an integer number (28279317262).

Almost surely, 2^56558634523 is an apocalyptic number.

56558634523 is a deficient number, since it is larger than the sum of its proper divisors (1).

56558634523 is an equidigital number, since it uses as much as digits as its factorization.

56558634523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960000, while the sum is 52.

The spelling of 56558634523 in words is "fifty-six billion, five hundred fifty-eight million, six hundred thirty-four thousand, five hundred twenty-three".