12555716 has 6 divisors (see below), whose sum is σ = 21972510. Its totient is φ = 6277856.

The previous prime is 12555709. The next prime is 12555737. The reversal of 12555716 is 61755521.

It can be written as a sum of positive squares in only one way, i.e., 7311616 + 5244100 = 2704^2 + 2290^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569461 + ... + 1569468.

It is an arithmetic number, because the mean of its divisors is an integer number (3662085).

Almost surely, 2^12555716 is an apocalyptic number.

It is an amenable number.

12555716 is a deficient number, since it is larger than the sum of its proper divisors (9416794).

12555716 is a wasteful number, since it uses less digits than its factorization.

12555716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138933 (or 3138931 counting only the distinct ones).

The product of its digits is 10500, while the sum is 32.

The square root of 12555716 is about 3543.4045775215. The cubic root of 12555716 is about 232.4237449854.

The spelling of 12555716 in words is "twelve million, five hundred fifty-five thousand, seven hundred sixteen".