11516225 has 48 divisors (see below), whose sum is σ = 17856000. Its totient is φ = 7338240.

The previous prime is 11516207. The next prime is 11516227. The reversal of 11516225 is 52261511.

It is a happy number.

It is not a de Polignac number, because 11516225 - 2¹⁰ = 11515201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11516225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11516227) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 145736 + ... + 145814.

It is an arithmetic number, because the mean of its divisors is an integer number (372000).

Almost surely, 2^11516225 is an apocalyptic number.

It is an amenable number.

11516225 is a deficient number, since it is larger than the sum of its proper divisors (6339775).

11516225 is an equidigital number, since it uses as much as digits as its factorization.

11516225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 108 counting only the distinct ones).

The product of its digits is 600, while the sum is 23.

The square root of 11516225 is about 3393.5563941093. The cubic root of 11516225 is about 225.8239747154.

Adding to 11516225 its reverse (52261511), we get a palindrome (63777736).

The spelling of 11516225 in words is "eleven million, five hundred sixteen thousand, two hundred twenty-five".