51100000055055 has 48 divisors (see below), whose sum is σ = 103136603918400. Its totient is φ = 22919245300224.

The previous prime is 51100000055047. The next prime is 51100000055171. The reversal of 51100000055055 is 55055000000115.

51100000055055 is a `hidden beast` number, since 5 + 1 + 100 + 0 + 0 + 0 + 0 + 550 + 5 + 5 = 666.

It is not a de Polignac number, because 51100000055055 - 2³ = 51100000055047 is a prime.

It is a super-2 number, since 2×51100000055055² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1530381630 + ... + 1530415019.

It is an arithmetic number, because the mean of its divisors is an integer number (2148679248300).

Almost surely, 2^{51100000055055} is an apocalyptic number.

51100000055055 is an abundant number, since it is smaller than the sum of its proper divisors (52036603863345).

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

51100000055055 is a wasteful number, since it uses less digits than its factorization.

51100000055055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060796720 (or 3060796717 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 27.

The spelling of 51100000055055 in words is "fifty-one trillion, one hundred billion, fifty-five thousand, fifty-five".