16330225 has 6 divisors (see below), whose sum is σ = 20249510. Its totient is φ = 13064160.

The previous prime is 16330163. The next prime is 16330229. The reversal of 16330225 is 52203361.

It can be written as a sum of positive squares in 3 ways, for example, as 4524129 + 11806096 = 2127^2 + 3436^2 .

It is a de Polignac number, because none of the positive numbers 2^k-16330225 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16330196 and 16330205.

It is not an unprimeable number, because it can be changed into a prime (16330229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 326580 + ... + 326629.

Almost surely, 2^16330225 is an apocalyptic number.

It is an amenable number.

16330225 is a deficient number, since it is larger than the sum of its proper divisors (3919285).

16330225 is an equidigital number, since it uses as much as digits as its factorization.

16330225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653219 (or 653214 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 16330225 is about 4041.0673095112. The cubic root of 16330225 is about 253.7059910574.

Adding to 16330225 its reverse (52203361), we get a palindrome (68533586).

The spelling of 16330225 in words is "sixteen million, three hundred thirty thousand, two hundred twenty-five".