12655552 has 112 divisors (see below), whose sum is σ = 32260032. Its totient is φ = 4792320.

The previous prime is 12655547. The next prime is 12655553. The reversal of 12655552 is 25555621.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12655553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238758 + ... + 238810.

It is an arithmetic number, because the mean of its divisors is an integer number (288036).

Almost surely, 2^12655552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12655552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16130016).

12655552 is an abundant number, since it is smaller than the sum of its proper divisors (19604480).

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

12655552 is a wasteful number, since it uses less digits than its factorization.

12655552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 116 counting only the distinct ones).

The product of its digits is 15000, while the sum is 31.

The square root of 12655552 is about 3557.4642654565. The cubic root of 12655552 is about 233.0381537230.

The spelling of 12655552 in words is "twelve million, six hundred fifty-five thousand, five hundred fifty-two".