12665256 has 32 divisors (see below), whose sum is σ = 31752000. Its totient is φ = 4209920.

The previous prime is 12665243. The next prime is 12665293. The reversal of 12665256 is 65256621.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13936 + ... + 14816.

It is an arithmetic number, because the mean of its divisors is an integer number (992250).

Almost surely, 2^12665256 is an apocalyptic number.

It is an amenable number.

12665256 is an abundant number, since it is smaller than the sum of its proper divisors (19086744).

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

12665256 is a wasteful number, since it uses less digits than its factorization.

12665256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489 (or 1485 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 12665256 is about 3558.8278969346. The cubic root of 12665256 is about 233.0977013559.

It can be divided in two parts, 12665 and 256, that added together give a palindrome (12921).

The spelling of 12665256 in words is "twelve million, six hundred sixty-five thousand, two hundred fifty-six".