12555984 has 40 divisors (see below), whose sum is σ = 37071040. Its totient is φ = 3587328.

The previous prime is 12555947. The next prime is 12555989. The reversal of 12555984 is 48955521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12555989) 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, 18349 + ... + 19020.

It is an arithmetic number, because the mean of its divisors is an integer number (926776).

Almost surely, 2^12555984 is an apocalyptic number.

12555984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12555984 is an abundant number, since it is smaller than the sum of its proper divisors (24515056).

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

12555984 is a wasteful number, since it uses less digits than its factorization.

12555984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37387 (or 37381 counting only the distinct ones).

The product of its digits is 72000, while the sum is 39.

The square root of 12555984 is about 3543.4423940569. The cubic root of 12555984 is about 232.4253986577.

The spelling of 12555984 in words is "twelve million, five hundred fifty-five thousand, nine hundred eighty-four".