12563725 has 6 divisors (see below), whose sum is σ = 15579050. Its totient is φ = 10050960.

The previous prime is 12563689. The next prime is 12563737. The reversal of 12563725 is 52736521.

It can be written as a sum of positive squares in 3 ways, for example, as 39204 + 12524521 = 198^2 + 3539^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12563725 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 251250 + ... + 251299.

Almost surely, 2^12563725 is an apocalyptic number.

It is an amenable number.

12563725 is a deficient number, since it is larger than the sum of its proper divisors (3015325).

12563725 is an equidigital number, since it uses as much as digits as its factorization.

12563725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502559 (or 502554 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The square root of 12563725 is about 3544.5345251528. The cubic root of 12563725 is about 232.4731537199.

The spelling of 12563725 in words is "twelve million, five hundred sixty-three thousand, seven hundred twenty-five".