12725656 has 32 divisors (see below), whose sum is σ = 25485840. Its totient is φ = 5936128.

The previous prime is 12725653. The next prime is 12725659. The reversal of 12725656 is 65652721.

It is an interprime number because it is at equal distance from previous prime (12725653) and next prime (12725659).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12725653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18291 + ... + 18973.

Almost surely, 2^12725656 is an apocalyptic number.

It is an amenable number.

12725656 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

12725656 is a wasteful number, since it uses less digits than its factorization.

12725656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 839 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 12725656 is about 3567.3037437258. The cubic root of 12725656 is about 233.4676578051.

The spelling of 12725656 in words is "twelve million, seven hundred twenty-five thousand, six hundred fifty-six".