15225244 has 12 divisors (see below), whose sum is σ = 26893944. Its totient is φ = 7541264.

The previous prime is 15225239. The next prime is 15225253. The reversal of 15225244 is 44252251.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17359 + ... + 18214.

It is an arithmetic number, because the mean of its divisors is an integer number (2241162).

Almost surely, 2^15225244 is an apocalyptic number.

It is an amenable number.

15225244 is a deficient number, since it is larger than the sum of its proper divisors (11668700).

15225244 is a wasteful number, since it uses less digits than its factorization.

15225244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35684 (or 35682 counting only the distinct ones).

The product of its digits is 3200, while the sum is 25.

The square root of 15225244 is about 3901.9538695377. The cubic root of 15225244 is about 247.8495228318.

Adding to 15225244 its reverse (44252251), we get a palindrome (59477495).

The spelling of 15225244 in words is "fifteen million, two hundred twenty-five thousand, two hundred forty-four".