11256857 has 4 divisors (see below), whose sum is σ = 11300916. Its totient is φ = 11212800.

The previous prime is 11256853. The next prime is 11256859. The reversal of 11256857 is 75865211.

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 9265936 + 1990921 = 3044^2 + 1411^2 .

It is a cyclic number.

It is not a de Polignac number, because 11256857 - 2² = 11256853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11256851) 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 in 3 ways as a sum of consecutive naturals, for example, 21644 + ... + 22157.

It is an arithmetic number, because the mean of its divisors is an integer number (2825229).

Almost surely, 2^11256857 is an apocalyptic number.

It is an amenable number.

11256857 is a deficient number, since it is larger than the sum of its proper divisors (44059).

11256857 is an equidigital number, since it uses as much as digits as its factorization.

11256857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44058.

The product of its digits is 16800, while the sum is 35.

The square root of 11256857 is about 3355.1239917475. The cubic root of 11256857 is about 224.1157525149.

The spelling of 11256857 in words is "eleven million, two hundred fifty-six thousand, eight hundred fifty-seven".