12525656 has 32 divisors (see below), whose sum is σ = 27594000. Its totient is φ = 5255040.

The previous prime is 12525637. The next prime is 12525661. The reversal of 12525656 is 65652521.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4331 + ... + 6618.

Almost surely, 2^12525656 is an apocalyptic number.

It is an amenable number.

12525656 is an abundant number, since it is smaller than the sum of its proper divisors (15068344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12525656 is a wasteful number, since it uses less digits than its factorization.

12525656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10979 (or 10975 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 12525656 is about 3539.1603524000. The cubic root of 12525656 is about 232.2381126446.

The spelling of 12525656 in words is "twelve million, five hundred twenty-five thousand, six hundred fifty-six".