12565725 has 12 divisors (see below), whose sum is σ = 20775456. Its totient is φ = 6701680.

The previous prime is 12565687. The next prime is 12565727. The reversal of 12565725 is 52756521.

It is not a de Polignac number, because 12565725 - 2¹⁸ = 12303581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12565727) 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, 83697 + ... + 83846.

It is an arithmetic number, because the mean of its divisors is an integer number (1731288).

Almost surely, 2^12565725 is an apocalyptic number.

12565725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12565725 is a deficient number, since it is larger than the sum of its proper divisors (8209731).

12565725 is a wasteful number, since it uses less digits than its factorization.

12565725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167556 (or 167551 counting only the distinct ones).

The product of its digits is 21000, while the sum is 33.

The square root of 12565725 is about 3544.8166384173. The cubic root of 12565725 is about 232.4854887463.

The spelling of 12565725 in words is "twelve million, five hundred sixty-five thousand, seven hundred twenty-five".