12553265 has 4 divisors (see below), whose sum is σ = 15063924. Its totient is φ = 10042608.

The previous prime is 12553241. The next prime is 12553271. The reversal of 12553265 is 56235521.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5798464 + 6754801 = 2408^2 + 2599^2 .

It is a cyclic number.

It is not a de Polignac number, because 12553265 - 2¹⁶ = 12487729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255322 + ... + 1255331.

It is an arithmetic number, because the mean of its divisors is an integer number (3765981).

Almost surely, 2^12553265 is an apocalyptic number.

It is an amenable number.

12553265 is a deficient number, since it is larger than the sum of its proper divisors (2510659).

12553265 is an equidigital number, since it uses as much as digits as its factorization.

12553265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510658.

The product of its digits is 9000, while the sum is 29.

The square root of 12553265 is about 3543.0587068238. The cubic root of 12553265 is about 232.4086201963.

Adding to 12553265 its reverse (56235521), we get a palindrome (68788786).

The spelling of 12553265 in words is "twelve million, five hundred fifty-three thousand, two hundred sixty-five".