2255185791 has 12 divisors (see below), whose sum is σ = 3428937720. Its totient is φ = 1424327760.

The previous prime is 2255185787. The next prime is 2255185909. The reversal of 2255185791 is 1975815522.

2255185791 is a `hidden beast` number, since 2 + 2 + 551 + 8 + 5 + 7 + 91 = 666.

It is not a de Polignac number, because 2255185791 - 2² = 2255185787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255185291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6593940 + ... + 6594281.

It is an arithmetic number, because the mean of its divisors is an integer number (285744810).

Almost surely, 2^2255185791 is an apocalyptic number.

2255185791 is a deficient number, since it is larger than the sum of its proper divisors (1173751929).

2255185791 is a wasteful number, since it uses less digits than its factorization.

2255185791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13188246 (or 13188243 counting only the distinct ones).

The product of its digits is 252000, while the sum is 45.

The square root of 2255185791 is about 47488.7964787485. The cubic root of 2255185791 is about 1311.3766370514.

The spelling of 2255185791 in words is "two billion, two hundred fifty-five million, one hundred eighty-five thousand, seven hundred ninety-one".