12725515 has 16 divisors (see below), whose sum is σ = 16936416. Its totient is φ = 9100800.

The previous prime is 12725513. The next prime is 12725551. The reversal of 12725515 is 51552721.

It is not a de Polignac number, because 12725515 - 2¹ = 12725513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12725513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1459 + ... + 5251.

It is an arithmetic number, because the mean of its divisors is an integer number (1058526).

Almost surely, 2^12725515 is an apocalyptic number.

12725515 is a deficient number, since it is larger than the sum of its proper divisors (4210901).

12725515 is a wasteful number, since it uses less digits than its factorization.

12725515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3870.

The product of its digits is 3500, while the sum is 28.

The square root of 12725515 is about 3567.2839808459. The cubic root of 12725515 is about 233.4667955297.

It can be divided in two parts, 12 and 725515, that added together give a palindrome (725527).

The spelling of 12725515 in words is "twelve million, seven hundred twenty-five thousand, five hundred fifteen".