13244425 has 12 divisors (see below), whose sum is σ = 17288080. Its totient is φ = 10037520.

The previous prime is 13244383. The next prime is 13244431. The reversal of 13244425 is 52444231.

It is a happy number.

It is not a de Polignac number, because 13244425 - 2¹¹ = 13242377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 13244425.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13467 + ... + 14416.

Almost surely, 2^13244425 is an apocalyptic number.

It is an amenable number.

13244425 is a deficient number, since it is larger than the sum of its proper divisors (4043655).

13244425 is a wasteful number, since it uses less digits than its factorization.

13244425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27912 (or 27907 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 13244425 is about 3639.2890789274. The cubic root of 13244425 is about 236.5979820081.

Adding to 13244425 its reverse (52444231), we get a palindrome (65688656).

The spelling of 13244425 in words is "thirteen million, two hundred forty-four thousand, four hundred twenty-five".