12521652 has 48 divisors (see below), whose sum is σ = 34329792. Its totient is φ = 3502080.

The previous prime is 12521623. The next prime is 12521669. The reversal of 12521652 is 25612521.

It is a happy number.

12521652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1933 + ... + 5364.

It is an arithmetic number, because the mean of its divisors is an integer number (715204).

Almost surely, 2^12521652 is an apocalyptic number.

12521652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12521652 is an abundant number, since it is smaller than the sum of its proper divisors (21808140).

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

12521652 is a wasteful number, since it uses less digits than its factorization.

12521652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7328 (or 7326 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 12521652 is about 3538.5946362928. The cubic root of 12521652 is about 232.2133639607.

The spelling of 12521652 in words is "twelve million, five hundred twenty-one thousand, six hundred fifty-two".