12553944 has 32 divisors (see below), whose sum is σ = 33799920. Its totient is φ = 3862656.

The previous prime is 12553943. The next prime is 12553993. The reversal of 12553944 is 44935521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12553943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19807 + ... + 20430.

Almost surely, 2^12553944 is an apocalyptic number.

It is an amenable number.

12553944 is an abundant number, since it is smaller than the sum of its proper divisors (21245976).

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

12553944 is a wasteful number, since it uses less digits than its factorization.

12553944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40259 (or 40255 counting only the distinct ones).

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

The square root of 12553944 is about 3543.1545266895. The cubic root of 12553944 is about 232.4128104105.

The spelling of 12553944 in words is "twelve million, five hundred fifty-three thousand, nine hundred forty-four".