56505055555 has 8 divisors (see below), whose sum is σ = 73021918032. Its totient is φ = 41726810208.

The previous prime is 56505055553. The next prime is 56505055571. The reversal of 56505055555 is 55555050565.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 56505055555 - 2¹ = 56505055553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56505055553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434654209 + ... + 434654338.

It is an arithmetic number, because the mean of its divisors is an integer number (9127739754).

Almost surely, 2^56505055555 is an apocalyptic number.

56505055555 is a deficient number, since it is larger than the sum of its proper divisors (16516862477).

56505055555 is a wasteful number, since it uses less digits than its factorization.

56505055555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869308565.

The product of its (nonzero) digits is 2343750, while the sum is 46.

The spelling of 56505055555 in words is "fifty-six billion, five hundred five million, fifty-five thousand, five hundred fifty-five".