11255881 has 16 divisors (see below), whose sum is σ = 14232064. Its totient is φ = 8662464.

The previous prime is 11255873. The next prime is 11255891. The reversal of 11255881 is 18855211.

It is a cyclic number.

It is not a de Polignac number, because 11255881 - 2³ = 11255873 is a prime.

It is a super-2 number, since 2×11255881² = 253389714172322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11255831) 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, 1696 + ... + 5038.

It is an arithmetic number, because the mean of its divisors is an integer number (889504).

Almost surely, 2^11255881 is an apocalyptic number.

It is an amenable number.

11255881 is a deficient number, since it is larger than the sum of its proper divisors (2976183).

11255881 is a wasteful number, since it uses less digits than its factorization.

11255881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400.

The product of its digits is 3200, while the sum is 31.

The square root of 11255881 is about 3354.9785394247. The cubic root of 11255881 is about 224.1092751800.

The spelling of 11255881 in words is "eleven million, two hundred fifty-five thousand, eight hundred eighty-one".