2111560055 has 32 divisors (see below), whose sum is σ = 2930888448. Its totient is φ = 1443340800.

The previous prime is 2111560051. The next prime is 2111560127. The reversal of 2111560055 is 5500651112.

It is not a de Polignac number, because 2111560055 - 2² = 2111560051 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111560051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1049000 + ... + 1051010.

It is an arithmetic number, because the mean of its divisors is an integer number (91590264).

Almost surely, 2^2111560055 is an apocalyptic number.

2111560055 is a deficient number, since it is larger than the sum of its proper divisors (819328393).

2111560055 is a wasteful number, since it uses less digits than its factorization.

2111560055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167.

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 2111560055 is about 45951.7143858638. The cubic root of 2111560055 is about 1282.9246387732.

The spelling of 2111560055 in words is "two billion, one hundred eleven million, five hundred sixty thousand, fifty-five".