12518725 has 12 divisors (see below), whose sum is σ = 15779620. Its totient is φ = 9849600.

The previous prime is 12518717. The next prime is 12518731. The reversal of 12518725 is 52781521.

12518725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 5239521 + 7279204 = 2289^2 + 2698^2 .

It is not a de Polignac number, because 12518725 - 2³ = 12518717 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2580 + ... + 5629.

Almost surely, 2^12518725 is an apocalyptic number.

It is an amenable number.

12518725 is a deficient number, since it is larger than the sum of its proper divisors (3260895).

12518725 is an equidigital number, since it uses as much as digits as its factorization.

12518725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8280 (or 8275 counting only the distinct ones).

The product of its digits is 5600, while the sum is 31.

The square root of 12518725 is about 3538.1810298514. The cubic root of 12518725 is about 232.1952688647.

The spelling of 12518725 in words is "twelve million, five hundred eighteen thousand, seven hundred twenty-five".