12255881 has 16 divisors (see below), whose sum is σ = 13959168. Its totient is φ = 10659600.

The previous prime is 12255877. The next prime is 12255889. The reversal of 12255881 is 18855221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12255881 - 2² = 12255877 is a prime.

It is a super-2 number, since 2×12255881² = 300413238172322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12255889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43166 + ... + 43448.

It is an arithmetic number, because the mean of its divisors is an integer number (872448).

Almost surely, 2^12255881 is an apocalyptic number.

12255881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12255881 is a deficient number, since it is larger than the sum of its proper divisors (1703287).

12255881 is a wasteful number, since it uses less digits than its factorization.

12255881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452.

The product of its digits is 6400, while the sum is 32.

The square root of 12255881 is about 3500.8400420471. The cubic root of 12255881 is about 230.5586984642.

The spelling of 12255881 in words is "twelve million, two hundred fifty-five thousand, eight hundred eighty-one".