15225232 has 80 divisors (see below), whose sum is σ = 35265600. Its totient is φ = 6289920.

The previous prime is 15225181. The next prime is 15225233. The reversal of 15225232 is 23252251.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (15225233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96898 + ... + 97054.

It is an arithmetic number, because the mean of its divisors is an integer number (440820).

Almost surely, 2^15225232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15225232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17632800).

15225232 is an abundant number, since it is smaller than the sum of its proper divisors (20040368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15225232 is a wasteful number, since it uses less digits than its factorization.

15225232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 218 counting only the distinct ones).

The product of its digits is 1200, while the sum is 22.

The square root of 15225232 is about 3901.9523318462. The cubic root of 15225232 is about 247.8494577163.

Adding to 15225232 its reverse (23252251), we get a palindrome (38477483).

The spelling of 15225232 in words is "fifteen million, two hundred twenty-five thousand, two hundred thirty-two".