55611005556 has 24 divisors (see below), whose sum is σ = 129771331200. Its totient is φ = 18535242112.

The previous prime is 55611005533. The next prime is 55611005573. The reversal of 55611005556 is 65550011655.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 84981 + ... + 344156.

It is an arithmetic number, because the mean of its divisors is an integer number (5407138800).

Almost surely, 2^55611005556 is an apocalyptic number.

It is an amenable number.

55611005556 is an abundant number, since it is smaller than the sum of its proper divisors (74160325644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55611005556 is a wasteful number, since it uses less digits than its factorization.

55611005556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439943 (or 439941 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 55611005556 in words is "fifty-five billion, six hundred eleven million, five thousand, five hundred fifty-six".