12556648 has 16 divisors (see below), whose sum is σ = 25354980. Its totient is φ = 5795328.

The previous prime is 12556639. The next prime is 12556669. The reversal of 12556648 is 84665521.

It can be written as a sum of positive squares in 2 ways, for example, as 12517444 + 39204 = 3538^2 + 198^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60265 + ... + 60472.

Almost surely, 2^12556648 is an apocalyptic number.

It is an amenable number.

12556648 is an abundant number, since it is smaller than the sum of its proper divisors (12798332).

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

12556648 is a wasteful number, since it uses less digits than its factorization.

12556648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120756 (or 120752 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 12556648 is about 3543.5360870182. The cubic root of 12556648 is about 232.4294957147.

The spelling of 12556648 in words is "twelve million, five hundred fifty-six thousand, six hundred forty-eight".