12512566 has 16 divisors (see below), whose sum is σ = 20571408. Its totient is φ = 5660800.

The previous prime is 12512557. The next prime is 12512569. The reversal of 12512566 is 66521521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3906 + ... + 6346.

It is an arithmetic number, because the mean of its divisors is an integer number (1285713).

Almost surely, 2^12512566 is an apocalyptic number.

12512566 is a deficient number, since it is larger than the sum of its proper divisors (8058842).

12512566 is a wasteful number, since it uses less digits than its factorization.

12512566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2687.

The product of its digits is 3600, while the sum is 28.

The square root of 12512566 is about 3537.3105602986. The cubic root of 12512566 is about 232.1571839093.

It can be divided in two parts, 12 and 512566, that added together give a triangular number (512578 = T₁₀₁₂).

The spelling of 12512566 in words is "twelve million, five hundred twelve thousand, five hundred sixty-six".