12505672 has 8 divisors (see below), whose sum is σ = 23448150. Its totient is φ = 6252832.

The previous prime is 12505643. The next prime is 12505681. The reversal of 12505672 is 27650521.

12505672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8561476 + 3944196 = 2926^2 + 1986^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12505672.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781597 + ... + 781612.

Almost surely, 2^12505672 is an apocalyptic number.

It is an amenable number.

12505672 is a deficient number, since it is larger than the sum of its proper divisors (10942478).

12505672 is a wasteful number, since it uses less digits than its factorization.

12505672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563215 (or 1563211 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 12505672 is about 3536.3359568910. The cubic root of 12505672 is about 232.1145391617.

The spelling of 12505672 in words is "twelve million, five hundred five thousand, six hundred seventy-two".