11522225 has 36 divisors (see below), whose sum is σ = 16970268. Its totient is φ = 7708800.

The previous prime is 11522219. The next prime is 11522249. The reversal of 11522225 is 52222511.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 43681 + 11478544 = 209^2 + 3388^2 .

It is not a de Polignac number, because 11522225 - 2²² = 7327921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11522197 and 11522206.

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 35 ways as a sum of consecutive naturals, for example, 39179 + ... + 39471.

Almost surely, 2^11522225 is an apocalyptic number.

It is an amenable number.

11522225 is a deficient number, since it is larger than the sum of its proper divisors (5448043).

11522225 is a wasteful number, since it uses less digits than its factorization.

11522225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 322 counting only the distinct ones).

The product of its digits is 400, while the sum is 20.

The square root of 11522225 is about 3394.4403073261. The cubic root of 11522225 is about 225.8631863091.

Adding to 11522225 its reverse (52222511), we get a palindrome (63744736).

It can be divided in two parts, 11 and 522225, that multiplied together give a palindrome (5744475).

The spelling of 11522225 in words is "eleven million, five hundred twenty-two thousand, two hundred twenty-five".