11256449 has 4 divisors (see below), whose sum is σ = 11297364. Its totient is φ = 11215536.

The previous prime is 11256439. The next prime is 11256451. The reversal of 11256449 is 94465211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 628849 + 10627600 = 793^2 + 3260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11256449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11256439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20042 + ... + 20595.

It is an arithmetic number, because the mean of its divisors is an integer number (2824341).

Almost surely, 2^11256449 is an apocalyptic number.

It is an amenable number.

11256449 is a deficient number, since it is larger than the sum of its proper divisors (40915).

11256449 is an equidigital number, since it uses as much as digits as its factorization.

11256449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40914.

The product of its digits is 8640, while the sum is 32.

The square root of 11256449 is about 3355.0631886747. The cubic root of 11256449 is about 224.1130448221.

The spelling of 11256449 in words is "eleven million, two hundred fifty-six thousand, four hundred forty-nine".