11255891 has 2 divisors, whose sum is σ = 11255892. Its totient is φ = 11255890.

The previous prime is 11255873. The next prime is 11255897. The reversal of 11255891 is 19855211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11255891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11255897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5627945 + 5627946.

It is an arithmetic number, because the mean of its divisors is an integer number (5627946).

Almost surely, 2^11255891 is an apocalyptic number.

11255891 is a deficient number, since it is larger than the sum of its proper divisors (1).

11255891 is an equidigital number, since it uses as much as digits as its factorization.

11255891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 32.

The square root of 11255891 is about 3354.9800297468. The cubic root of 11255891 is about 224.1093415481.

The spelling of 11255891 in words is "eleven million, two hundred fifty-five thousand, eight hundred ninety-one".