56055560065 has 16 divisors (see below), whose sum is σ = 70881436800. Its totient is φ = 42439565952.

The previous prime is 56055560059. The next prime is 56055560089. The reversal of 56055560065 is 56006555065.

It is a cyclic number.

It is not a de Polignac number, because 56055560065 - 2¹³ = 56055551873 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 219045 + ... + 400114.

It is an arithmetic number, because the mean of its divisors is an integer number (4430089800).

Almost surely, 2^56055560065 is an apocalyptic number.

It is an amenable number.

56055560065 is a deficient number, since it is larger than the sum of its proper divisors (14825876735).

56055560065 is a wasteful number, since it uses less digits than its factorization.

56055560065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620136.

The product of its (nonzero) digits is 675000, while the sum is 43.

The spelling of 56055560065 in words is "fifty-six billion, fifty-five million, five hundred sixty thousand, sixty-five".