56605655505 has 16 divisors (see below), whose sum is σ = 103507484544. Its totient is φ = 25876871040.

The previous prime is 56605655501. The next prime is 56605655527. The reversal of 56605655505 is 50555650665.

It is not a de Polignac number, because 56605655505 - 2² = 56605655501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56605655501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269550636 + ... + 269550845.

It is an arithmetic number, because the mean of its divisors is an integer number (6469217784).

Almost surely, 2^56605655505 is an apocalyptic number.

It is an amenable number.

56605655505 is a deficient number, since it is larger than the sum of its proper divisors (46901829039).

56605655505 is a wasteful number, since it uses less digits than its factorization.

56605655505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539101496.

The product of its (nonzero) digits is 3375000, while the sum is 48.

The spelling of 56605655505 in words is "fifty-six billion, six hundred five million, six hundred fifty-five thousand, five hundred five".