55011109975 has 12 divisors (see below), whose sum is σ = 69332036920. Its totient is φ = 43287429600.

The previous prime is 55011109943. The next prime is 55011109991. The reversal of 55011109975 is 57990111055.

It is not a de Polignac number, because 55011109975 - 2⁵ = 55011109943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18034905 + ... + 18037954.

Almost surely, 2^55011109975 is an apocalyptic number.

55011109975 is a deficient number, since it is larger than the sum of its proper divisors (14320926945).

55011109975 is a wasteful number, since it uses less digits than its factorization.

55011109975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36072930 (or 36072925 counting only the distinct ones).

The product of its (nonzero) digits is 70875, while the sum is 43.

The spelling of 55011109975 in words is "fifty-five billion, eleven million, one hundred nine thousand, nine hundred seventy-five".