11857225 has 6 divisors (see below), whose sum is σ = 14702990. Its totient is φ = 9485760.

The previous prime is 11857217. The next prime is 11857243. The reversal of 11857225 is 52275811.

It can be written as a sum of positive squares in 3 ways, for example, as 112896 + 11744329 = 336^2 + 3427^2 .

It is not a de Polignac number, because 11857225 - 2³ = 11857217 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237120 + ... + 237169.

Almost surely, 2^11857225 is an apocalyptic number.

It is an amenable number.

11857225 is a deficient number, since it is larger than the sum of its proper divisors (2845765).

11857225 is an equidigital number, since it uses as much as digits as its factorization.

11857225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474299 (or 474294 counting only the distinct ones).

The product of its digits is 5600, while the sum is 31.

The square root of 11857225 is about 3443.4321541160. The cubic root of 11857225 is about 228.0312425126.

The spelling of 11857225 in words is "eleven million, eight hundred fifty-seven thousand, two hundred twenty-five".