11255281 has 2 divisors, whose sum is σ = 11255282. Its totient is φ = 11255280.

The previous prime is 11255273. The next prime is 11255287. The reversal of 11255281 is 18255211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6170256 + 5085025 = 2484^2 + 2255^2 .

It is a cyclic number.

It is not a de Polignac number, because 11255281 - 2³ = 11255273 is a prime.

It is a super-2 number, since 2×11255281² = 253362700777922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11255287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5627640 + 5627641.

It is an arithmetic number, because the mean of its divisors is an integer number (5627641).

Almost surely, 2^11255281 is an apocalyptic number.

It is an amenable number.

11255281 is a deficient number, since it is larger than the sum of its proper divisors (1).

11255281 is an equidigital number, since it uses as much as digits as its factorization.

11255281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 800, while the sum is 25.

The square root of 11255281 is about 3354.8891188831. The cubic root of 11255281 is about 224.1052930260.

The spelling of 11255281 in words is "eleven million, two hundred fifty-five thousand, two hundred eighty-one".