56558272871 has 4 divisors (see below), whose sum is σ = 56990015544. Its totient is φ = 56126530200.

The previous prime is 56558272817. The next prime is 56558272879. The reversal of 56558272871 is 17827285565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56558272871 - 2⁶ = 56558272807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56558272879) 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 in 3 ways as a sum of consecutive naturals, for example, 215871140 + ... + 215871401.

It is an arithmetic number, because the mean of its divisors is an integer number (14247503886).

Almost surely, 2^56558272871 is an apocalyptic number.

56558272871 is a deficient number, since it is larger than the sum of its proper divisors (431742673).

56558272871 is a wasteful number, since it uses less digits than its factorization.

56558272871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431742672.

The product of its digits is 9408000, while the sum is 56.

The spelling of 56558272871 in words is "fifty-six billion, five hundred fifty-eight million, two hundred seventy-two thousand, eight hundred seventy-one".