2255188761 has 24 divisors (see below), whose sum is σ = 3742362624. Its totient is φ = 1281925440.

The previous prime is 2255188759. The next prime is 2255188769. The reversal of 2255188761 is 1678815522.

2255188761 is a `hidden beast` number, since 22 + 551 + 8 + 8 + 76 + 1 = 666.

2255188761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2255188761 - 2¹ = 2255188759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2255188769) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81676 + ... + 105741.

It is an arithmetic number, because the mean of its divisors is an integer number (155931776).

Almost surely, 2^2255188761 is an apocalyptic number.

2255188761 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2255188761 is a deficient number, since it is larger than the sum of its proper divisors (1487173863).

2255188761 is a wasteful number, since it uses less digits than its factorization.

2255188761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187621 (or 187618 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 2255188761 is about 47488.8277492717. The cubic root of 2255188761 is about 1311.3772127301.

The spelling of 2255188761 in words is "two billion, two hundred fifty-five million, one hundred eighty-eight thousand, seven hundred sixty-one".