2555015155 has 32 divisors (see below), whose sum is σ = 3828883968. Its totient is φ = 1590105600.

The previous prime is 2555015147. The next prime is 2555015161. The reversal of 2555015155 is 5515105552.

It is not a de Polignac number, because 2555015155 - 2³ = 2555015147 is a prime.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2555015155.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242395 + ... + 252715.

It is an arithmetic number, because the mean of its divisors is an integer number (119652624).

Almost surely, 2^2555015155 is an apocalyptic number.

2555015155 is a deficient number, since it is larger than the sum of its proper divisors (1273868813).

2555015155 is a wasteful number, since it uses less digits than its factorization.

2555015155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10987.

The product of its (nonzero) digits is 31250, while the sum is 34.

The square root of 2555015155 is about 50547.1577341397. The cubic root of 2555015155 is about 1367.0922673750.

The spelling of 2555015155 in words is "two billion, five hundred fifty-five million, fifteen thousand, one hundred fifty-five".