12564253 has 4 divisors (see below), whose sum is σ = 13530748. Its totient is φ = 11597760.

The previous prime is 12564247. The next prime is 12564259. The reversal of 12564253 is 35246521.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12564247) and next prime (12564259).

It can be written as a sum of positive squares in 2 ways, for example, as 3790809 + 8773444 = 1947^2 + 2962^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12564253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12564259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483228 + ... + 483253.

It is an arithmetic number, because the mean of its divisors is an integer number (3382687).

Almost surely, 2^12564253 is an apocalyptic number.

12564253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12564253 is a deficient number, since it is larger than the sum of its proper divisors (966495).

12564253 is an equidigital number, since it uses as much as digits as its factorization.

12564253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966494.

The product of its digits is 7200, while the sum is 28.

The square root of 12564253 is about 3544.6090052360. The cubic root of 12564253 is about 232.4764102940.

The spelling of 12564253 in words is "twelve million, five hundred sixty-four thousand, two hundred fifty-three".