2155045055 has 8 divisors (see below), whose sum is σ = 2599182432. Its totient is φ = 1715283808.

The previous prime is 2155045003. The next prime is 2155045063. The reversal of 2155045055 is 5505405512.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2155045055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1092947 + ... + 1094916.

It is an arithmetic number, because the mean of its divisors is an integer number (324897804).

Almost surely, 2^2155045055 is an apocalyptic number.

2155045055 is a deficient number, since it is larger than the sum of its proper divisors (444137377).

2155045055 is a wasteful number, since it uses less digits than its factorization.

2155045055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188065.

The product of its (nonzero) digits is 25000, while the sum is 32.

The square root of 2155045055 is about 46422.4628278164. The cubic root of 2155045055 is about 1291.6716215604.

The spelling of 2155045055 in words is "two billion, one hundred fifty-five million, forty-five thousand, fifty-five".