16725285 has 40 divisors (see below), whose sum is σ = 30518136. Its totient is φ = 8760960.

The previous prime is 16725281. The next prime is 16725299. The reversal of 16725285 is 58252761.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2232036 + 14493249 = 1494^2 + 3807^2 .

It is not a de Polignac number, because 16725285 - 2² = 16725281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16725281) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24367 + ... + 25043.

Almost surely, 2^16725285 is an apocalyptic number.

16725285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16725285 is a deficient number, since it is larger than the sum of its proper divisors (13792851).

16725285 is an equidigital number, since it uses as much as digits as its factorization.

16725285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755 (or 746 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 16725285 is about 4089.6558534918. The cubic root of 16725285 is about 255.7355922775.

It can be divided in two parts, 167 and 25285, that added together give a palindrome (25452).

The spelling of 16725285 in words is "sixteen million, seven hundred twenty-five thousand, two hundred eighty-five".