56105560555 has 16 divisors (see below), whose sum is σ = 73451879424. Its totient is φ = 40801488480.

The previous prime is 56105560481. The next prime is 56105560561. The reversal of 56105560555 is 55506550165.

56105560555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56105560555 - 2²⁹ = 55568689643 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1706704 + ... + 1739266.

It is an arithmetic number, because the mean of its divisors is an integer number (4590742464).

Almost surely, 2^56105560555 is an apocalyptic number.

56105560555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56105560555 is a deficient number, since it is larger than the sum of its proper divisors (17346318869).

56105560555 is a wasteful number, since it uses less digits than its factorization.

56105560555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63906.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 56105560555 in words is "fifty-six billion, one hundred five million, five hundred sixty thousand, five hundred fifty-five".