12525515 has 16 divisors (see below), whose sum is σ = 16083360. Its totient is φ = 9331200.

The previous prime is 12525511. The next prime is 12525533. The reversal of 12525515 is 51552521.

It is not a de Polignac number, because 12525515 - 2² = 12525511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12525511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7856 + ... + 9314.

It is an arithmetic number, because the mean of its divisors is an integer number (1005210).

Almost surely, 2^12525515 is an apocalyptic number.

12525515 is a deficient number, since it is larger than the sum of its proper divisors (3557845).

12525515 is a wasteful number, since it uses less digits than its factorization.

12525515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582.

The product of its digits is 2500, while the sum is 26.

The square root of 12525515 is about 3539.1404323649. The cubic root of 12525515 is about 232.2372412146.

The spelling of 12525515 in words is "twelve million, five hundred twenty-five thousand, five hundred fifteen".