56555455565 has 32 divisors (see below), whose sum is σ = 77944204800. Its totient is φ = 38590009344.

The previous prime is 56555455553. The next prime is 56555455577.

56555455565 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (56555455553) and next prime (56555455577).

It is a cyclic number.

It is not a de Polignac number, because 56555455565 - 2⁴ = 56555455549 is a prime.

It is a super-3 number, since 3×56555455565³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56555455565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9653117 + ... + 9658973.

It is an arithmetic number, because the mean of its divisors is an integer number (2435756400).

Almost surely, 2^56555455565 is an apocalyptic number.

It is an amenable number.

56555455565 is a deficient number, since it is larger than the sum of its proper divisors (21388749235).

56555455565 is a wasteful number, since it uses less digits than its factorization.

56555455565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7181.

The product of its digits is 56250000, while the sum is 56.

The spelling of 56555455565 in words is "fifty-six billion, five hundred fifty-five million, four hundred fifty-five thousand, five hundred sixty-five".