12563785 has 16 divisors (see below), whose sum is σ = 16317504. Its totient is φ = 9231552.

The previous prime is 12563777. The next prime is 12563797. The reversal of 12563785 is 58736521.

It is a cyclic number.

It is not a de Polignac number, because 12563785 - 2³ = 12563777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18054 + ... + 18736.

It is an arithmetic number, because the mean of its divisors is an integer number (1019844).

Almost surely, 2^12563785 is an apocalyptic number.

It is an amenable number.

12563785 is a deficient number, since it is larger than the sum of its proper divisors (3753719).

12563785 is a wasteful number, since it uses less digits than its factorization.

12563785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984.

The product of its digits is 50400, while the sum is 37.

The square root of 12563785 is about 3544.5429888774. The cubic root of 12563785 is about 232.4735237897.

It can be divided in two parts, 1256 and 3785, that added together give a square (5041 = 71²).

The spelling of 12563785 in words is "twelve million, five hundred sixty-three thousand, seven hundred eighty-five".