12552640 has 28 divisors (see below), whose sum is σ = 29891736. Its totient is φ = 5020928.

The previous prime is 12552637. The next prime is 12552667. The reversal of 12552640 is 4625521.

12552640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19294 + ... + 19933.

It is an arithmetic number, because the mean of its divisors is an integer number (1067562).

Almost surely, 2^12552640 is an apocalyptic number.

12552640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12552640 is an abundant number, since it is smaller than the sum of its proper divisors (17339096).

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

12552640 is an equidigital number, since it uses as much as digits as its factorization.

12552640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39244 (or 39234 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 12552640 is about 3542.9705050988. The cubic root of 12552640 is about 232.4047630909.

The spelling of 12552640 in words is "twelve million, five hundred fifty-two thousand, six hundred forty".