56558634527 has 2 divisors, whose sum is σ = 56558634528. Its totient is φ = 56558634526.

The previous prime is 56558634523. The next prime is 56558634529. The reversal of 56558634527 is 72543685565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56558634527 - 2² = 56558634523 is a prime.

Together with 56558634529, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56558634523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28279317263 + 28279317264.

It is an arithmetic number, because the mean of its divisors is an integer number (28279317264).

Almost surely, 2^56558634527 is an apocalyptic number.

56558634527 is a deficient number, since it is larger than the sum of its proper divisors (1).

56558634527 is an equidigital number, since it uses as much as digits as its factorization.

56558634527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240000, while the sum is 56.

The spelling of 56558634527 in words is "fifty-six billion, five hundred fifty-eight million, six hundred thirty-four thousand, five hundred twenty-seven".