12755563 has 16 divisors (see below), whose sum is σ = 13828320. Its totient is φ = 11741184.

The previous prime is 12755557. The next prime is 12755579. The reversal of 12755563 is 36555721.

It is a cyclic number.

It is not a de Polignac number, because 12755563 - 2⁹ = 12755051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12755263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65995 + ... + 66187.

It is an arithmetic number, because the mean of its divisors is an integer number (864270).

Almost surely, 2^12755563 is an apocalyptic number.

12755563 is a deficient number, since it is larger than the sum of its proper divisors (1072757).

12755563 is a wasteful number, since it uses less digits than its factorization.

12755563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318.

The product of its digits is 31500, while the sum is 34.

The square root of 12755563 is about 3571.4931051312. The cubic root of 12755563 is about 233.6504081634.

The spelling of 12755563 in words is "twelve million, seven hundred fifty-five thousand, five hundred sixty-three".