56558685565 has 8 divisors (see below), whose sum is σ = 67871708928. Its totient is φ = 45246090960.

The previous prime is 56558685559. The next prime is 56558685571.

It is a happy number.

56558685565 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (56558685559) and next prime (56558685571).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56558685565 - 2¹⁵ = 56558652797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56558685497 and 56558685506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409104 + ... + 529606.

It is an arithmetic number, because the mean of its divisors is an integer number (8483963616).

Almost surely, 2^56558685565 is an apocalyptic number.

It is an amenable number.

56558685565 is a deficient number, since it is larger than the sum of its proper divisors (11313023363).

56558685565 is a wasteful number, since it uses less digits than its factorization.

56558685565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214379.

The product of its digits is 216000000, while the sum is 64.

The spelling of 56558685565 in words is "fifty-six billion, five hundred fifty-eight million, six hundred eighty-five thousand, five hundred sixty-five".