13225525 has 12 divisors (see below), whose sum is σ = 16632864. Its totient is φ = 10430000.

The previous prime is 13225517. The next prime is 13225549. The reversal of 13225525 is 52552231.

It is a happy number.

It is not a de Polignac number, because 13225525 - 2³ = 13225517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13225525.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 1951 + ... + 5500.

It is an arithmetic number, because the mean of its divisors is an integer number (1386072).

Almost surely, 2^13225525 is an apocalyptic number.

It is an amenable number.

13225525 is a deficient number, since it is larger than the sum of its proper divisors (3407339).

13225525 is an equidigital number, since it uses as much as digits as its factorization.

13225525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7532 (or 7527 counting only the distinct ones).

The product of its digits is 3000, while the sum is 25.

The square root of 13225525 is about 3636.6914909021. The cubic root of 13225525 is about 236.4853854348.

Adding to 13225525 its reverse (52552231), we get a palindrome (65777756).

The spelling of 13225525 in words is "thirteen million, two hundred twenty-five thousand, five hundred twenty-five".