12755216 has 10 divisors (see below), whose sum is σ = 24713262. Its totient is φ = 6377600.

The previous prime is 12755207. The next prime is 12755227. The reversal of 12755216 is 61255721.

It can be written as a sum of positive squares in only one way, i.e., 12390400 + 364816 = 3520^2 + 604^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398585 + ... + 398616.

Almost surely, 2^12755216 is an apocalyptic number.

12755216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12755216 is a deficient number, since it is larger than the sum of its proper divisors (11958046).

12755216 is an equidigital number, since it uses as much as digits as its factorization.

12755216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797209 (or 797203 counting only the distinct ones).

The product of its digits is 4200, while the sum is 29.

The square root of 12755216 is about 3571.4445256787. Note that the first 3 decimals coincide. The cubic root of 12755216 is about 233.6482894165.

The spelling of 12755216 in words is "twelve million, seven hundred fifty-five thousand, two hundred sixteen".