12615825 has 12 divisors (see below), whose sum is σ = 20858288. Its totient is φ = 6728400.

The previous prime is 12615821. The next prime is 12615833. The reversal of 12615825 is 52851621.

It is not a de Polignac number, because 12615825 - 2² = 12615821 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12615792 and 12615801.

It is not an unprimeable number, because it can be changed into a prime (12615821) 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, 84031 + ... + 84180.

Almost surely, 2^12615825 is an apocalyptic number.

12615825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12615825 is a deficient number, since it is larger than the sum of its proper divisors (8242463).

12615825 is a wasteful number, since it uses less digits than its factorization.

12615825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168224 (or 168219 counting only the distinct ones).

The product of its digits is 4800, while the sum is 30.

The square root of 12615825 is about 3551.8762647367. The cubic root of 12615825 is about 232.7940550377.

It can be divided in two parts, 126 and 15825, that added together give a palindrome (15951).

The spelling of 12615825 in words is "twelve million, six hundred fifteen thousand, eight hundred twenty-five".