2255908881 has 4 divisors (see below), whose sum is σ = 3007878512. Its totient is φ = 1503939252.

The previous prime is 2255908873. The next prime is 2255908901. The reversal of 2255908881 is 1888095522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2255908881 - 2³ = 2255908873 is a prime.

It is a super-2 number, since 2×2255908881² = 10178249758749344322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2255908881.

It is not an unprimeable number, because it can be changed into a prime (2255908861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375984811 + ... + 375984816.

It is an arithmetic number, because the mean of its divisors is an integer number (751969628).

Almost surely, 2^2255908881 is an apocalyptic number.

It is an amenable number.

2255908881 is a deficient number, since it is larger than the sum of its proper divisors (751969631).

2255908881 is an equidigital number, since it uses as much as digits as its factorization.

2255908881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751969630.

The product of its (nonzero) digits is 460800, while the sum is 48.

The square root of 2255908881 is about 47496.4091379548. The cubic root of 2255908881 is about 1311.5167795337.

The spelling of 2255908881 in words is "two billion, two hundred fifty-five million, nine hundred eight thousand, eight hundred eighty-one".