12538504 has 24 divisors (see below), whose sum is σ = 25843230. Its totient is φ = 5698880.

The previous prime is 12538481. The next prime is 12538517. The reversal of 12538504 is 40583521.

12538504 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., 12236004 + 302500 = 3498^2 + 550^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5509 + ... + 7444.

Almost surely, 2^12538504 is an apocalyptic number.

It is an amenable number.

12538504 is an abundant number, since it is smaller than the sum of its proper divisors (13304726).

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

12538504 is a wasteful number, since it uses less digits than its factorization.

12538504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12981 (or 12966 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 12538504 is about 3540.9750069719. The cubic root of 12538504 is about 232.3174904075.

The spelling of 12538504 in words is "twelve million, five hundred thirty-eight thousand, five hundred four".