11521325 has 12 divisors (see below), whose sum is σ = 15127380. Its totient is φ = 8674560.

The previous prime is 11521303. The next prime is 11521327. The reversal of 11521325 is 52312511.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 103684 + 11417641 = 322^2 + 3379^2 .

It is not a de Polignac number, because 11521325 - 2¹⁸ = 11259181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11521297 and 11521306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11521327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13130 + ... + 13979.

It is an arithmetic number, because the mean of its divisors is an integer number (1260615).

Almost surely, 2^11521325 is an apocalyptic number.

It is an amenable number.

11521325 is a deficient number, since it is larger than the sum of its proper divisors (3606055).

11521325 is a wasteful number, since it uses less digits than its factorization.

11521325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27136 (or 27131 counting only the distinct ones).

The product of its digits is 300, while the sum is 20.

The square root of 11521325 is about 3394.3077350176. The cubic root of 11521325 is about 225.8573054380.

Adding to 11521325 its reverse (52312511), we get a palindrome (63833836).

The spelling of 11521325 in words is "eleven million, five hundred twenty-one thousand, three hundred twenty-five".