12616525 has 6 divisors (see below), whose sum is σ = 15644522. Its totient is φ = 10093200.

The previous prime is 12616523. The next prime is 12616529. The reversal of 12616525 is 52561621.

It can be written as a sum of positive squares in 3 ways, for example, as 1943236 + 10673289 = 1394^2 + 3267^2 .

It is not a de Polignac number, because 12616525 - 2¹ = 12616523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12616493 and 12616502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12616523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 252306 + ... + 252355.

Almost surely, 2^12616525 is an apocalyptic number.

It is an amenable number.

12616525 is a deficient number, since it is larger than the sum of its proper divisors (3027997).

12616525 is an equidigital number, since it uses as much as digits as its factorization.

12616525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504671 (or 504666 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 12616525 is about 3551.9748028386. The cubic root of 12616525 is about 232.7983605514.

The spelling of 12616525 in words is "twelve million, six hundred sixteen thousand, five hundred twenty-five".