12566652 has 24 divisors (see below), whose sum is σ = 33511296. Its totient is φ = 3590448.

The previous prime is 12566647. The next prime is 12566663. The reversal of 12566652 is 25666521.

It is a happy number.

It is a congruent 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, 74718 + ... + 74885.

It is an arithmetic number, because the mean of its divisors is an integer number (1396304).

Almost surely, 2^12566652 is an apocalyptic number.

12566652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12566652 is an abundant number, since it is smaller than the sum of its proper divisors (20944644).

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

12566652 is a wasteful number, since it uses less digits than its factorization.

12566652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149617 (or 149615 counting only the distinct ones).

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

The square root of 12566652 is about 3544.9473903007. The cubic root of 12566652 is about 232.4912055871.

The spelling of 12566652 in words is "twelve million, five hundred sixty-six thousand, six hundred fifty-two".