12955556 has 12 divisors (see below), whose sum is σ = 23199792. Its totient is φ = 6327048.

The previous prime is 12955543. The next prime is 12955609. The reversal of 12955556 is 65555921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37490 + ... + 37833.

It is an arithmetic number, because the mean of its divisors is an integer number (1933316).

Almost surely, 2^12955556 is an apocalyptic number.

It is an amenable number.

12955556 is a deficient number, since it is larger than the sum of its proper divisors (10244236).

12955556 is a wasteful number, since it uses less digits than its factorization.

12955556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75370 (or 75368 counting only the distinct ones).

The product of its digits is 67500, while the sum is 38.

The square root of 12955556 is about 3599.3827248571. The cubic root of 12955556 is about 234.8652071418.

The spelling of 12955556 in words is "twelve million, nine hundred fifty-five thousand, five hundred fifty-six".