15330225 has 24 divisors (see below), whose sum is σ = 25891200. Its totient is φ = 8000320.

The previous prime is 15330223. The next prime is 15330253. The reversal of 15330225 is 52203351.

It is not a de Polignac number, because 15330225 - 2¹ = 15330223 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15330221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1351 + ... + 5699.

It is an arithmetic number, because the mean of its divisors is an integer number (1078800).

Almost surely, 2^15330225 is an apocalyptic number.

15330225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15330225 is a deficient number, since it is larger than the sum of its proper divisors (10560975).

15330225 is a wasteful number, since it uses less digits than its factorization.

15330225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4409 (or 4404 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 15330225 is about 3915.3831230162. The cubic root of 15330225 is about 248.4178753139.

Adding to 15330225 its reverse (52203351), we get a palindrome (67533576).

The spelling of 15330225 in words is "fifteen million, three hundred thirty thousand, two hundred twenty-five".