2255511555 has 32 divisors (see below), whose sum is σ = 4374328320. Its totient is φ = 1093580640.

The previous prime is 2255511553. The next prime is 2255511589. The reversal of 2255511555 is 5551155522.

2255511555 is a `hidden beast` number, since 2 + 2 + 55 + 51 + 1 + 555 = 666.

It is not a de Polignac number, because 2255511555 - 2¹ = 2255511553 is a prime.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2255511553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 757947 + ... + 760916.

It is an arithmetic number, because the mean of its divisors is an integer number (136697760).

Almost surely, 2^2255511555 is an apocalyptic number.

2255511555 is a deficient number, since it is larger than the sum of its proper divisors (2118816765).

2255511555 is a wasteful number, since it uses less digits than its factorization.

2255511555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518888 (or 1518882 counting only the distinct ones).

The product of its digits is 62500, while the sum is 36.

The square root of 2255511555 is about 47492.2262586205. The cubic root of 2255511555 is about 1311.4397772640.

The spelling of 2255511555 in words is "two billion, two hundred fifty-five million, five hundred eleven thousand, five hundred fifty-five".