16828325 has 12 divisors (see below), whose sum is σ = 21155268. Its totient is φ = 13276800.

The previous prime is 16828321. The next prime is 16828337. The reversal of 16828325 is 52382861.

It can be written as a sum of positive squares in 6 ways, for example, as 320356 + 16507969 = 566^2 + 4063^2 .

It is not a de Polignac number, because 16828325 - 2² = 16828321 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16828321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2786 + ... + 6435.

It is an arithmetic number, because the mean of its divisors is an integer number (1762939).

Almost surely, 2^16828325 is an apocalyptic number.

It is an amenable number.

16828325 is a deficient number, since it is larger than the sum of its proper divisors (4326943).

16828325 is an equidigital number, since it uses as much as digits as its factorization.

16828325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9304 (or 9299 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 16828325 is about 4102.2341473885. The cubic root of 16828325 is about 256.2596902939.

The spelling of 16828325 in words is "sixteen million, eight hundred twenty-eight thousand, three hundred twenty-five".