16825285 has 4 divisors (see below), whose sum is σ = 20190348. Its totient is φ = 13460224.

The previous prime is 16825271. The next prime is 16825297. The reversal of 16825285 is 58252861.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3407716 + 13417569 = 1846^2 + 3663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16825285 is a prime.

It is a Duffinian number.

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, 1682524 + ... + 1682533.

It is an arithmetic number, because the mean of its divisors is an integer number (5047587).

Almost surely, 2^16825285 is an apocalyptic number.

It is an amenable number.

16825285 is a deficient number, since it is larger than the sum of its proper divisors (3365063).

16825285 is an equidigital number, since it uses as much as digits as its factorization.

16825285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365062.

The product of its digits is 38400, while the sum is 37.

The square root of 16825285 is about 4101.8636008527. The cubic root of 16825285 is about 256.2442584476.

It can be divided in two parts, 1 and 6825285, that added together give a palindrome (6825286).

The spelling of 16825285 in words is "sixteen million, eight hundred twenty-five thousand, two hundred eighty-five".