12544554 has 48 divisors (see below), whose sum is σ = 28383264. Its totient is φ = 3690720.

The previous prime is 12544549. The next prime is 12544577. The reversal of 12544554 is 45544521.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26629 + ... + 27095.

It is an arithmetic number, because the mean of its divisors is an integer number (591318).

Almost surely, 2^12544554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12544554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14191632).

12544554 is an abundant number, since it is smaller than the sum of its proper divisors (15838710).

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

12544554 is a wasteful number, since it uses less digits than its factorization.

12544554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 520 counting only the distinct ones).

The product of its digits is 16000, while the sum is 30.

The square root of 12544554 is about 3541.8291884279. The cubic root of 12544554 is about 232.3548498569.

The spelling of 12544554 in words is "twelve million, five hundred forty-four thousand, five hundred fifty-four".