12355656 has 16 divisors (see below), whose sum is σ = 30889200. Its totient is φ = 4118544.

The previous prime is 12355649. The next prime is 12355657. The reversal of 12355656 is 65655321.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12355657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257386 + ... + 257433.

It is an arithmetic number, because the mean of its divisors is an integer number (1930575).

Almost surely, 2^12355656 is an apocalyptic number.

It is an amenable number.

12355656 is an abundant number, since it is smaller than the sum of its proper divisors (18533544).

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

12355656 is a wasteful number, since it uses less digits than its factorization.

12355656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514828 (or 514824 counting only the distinct ones).

The product of its digits is 27000, while the sum is 33.

The square root of 12355656 is about 3515.0613081424. The cubic root of 12355656 is about 231.1826669317.

The spelling of 12355656 in words is "twelve million, three hundred fifty-five thousand, six hundred fifty-six".