12665253 has 4 divisors (see below), whose sum is σ = 16887008. Its totient is φ = 8443500.

The previous prime is 12665243. The next prime is 12665293. The reversal of 12665253 is 35256621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35256621 = 3 ⋅11752207.

It is not a de Polignac number, because 12665253 - 2⁸ = 12664997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12665253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12665243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2110873 + ... + 2110878.

It is an arithmetic number, because the mean of its divisors is an integer number (4221752).

Almost surely, 2^12665253 is an apocalyptic number.

It is an amenable number.

12665253 is a deficient number, since it is larger than the sum of its proper divisors (4221755).

12665253 is an equidigital number, since it uses as much as digits as its factorization.

12665253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4221754.

The product of its digits is 10800, while the sum is 30.

The square root of 12665253 is about 3558.8274754475. The cubic root of 12665253 is about 233.0976829514.

The spelling of 12665253 in words is "twelve million, six hundred sixty-five thousand, two hundred fifty-three".