12555655 has 8 divisors (see below), whose sum is σ = 17219232. Its totient is φ = 8609568.

The previous prime is 12555649. The next prime is 12555667. The reversal of 12555655 is 55655521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12555655 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12555655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179332 + ... + 179401.

It is an arithmetic number, because the mean of its divisors is an integer number (2152404).

Almost surely, 2^12555655 is an apocalyptic number.

12555655 is a deficient number, since it is larger than the sum of its proper divisors (4663577).

12555655 is an equidigital number, since it uses as much as digits as its factorization.

12555655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358745.

The product of its digits is 37500, while the sum is 34.

The square root of 12555655 is about 3543.3959699701. The cubic root of 12555655 is about 232.4233685865.

The spelling of 12555655 in words is "twelve million, five hundred fifty-five thousand, six hundred fifty-five".