16804925 has 12 divisors (see below), whose sum is σ = 22064436. Its totient is φ = 12652800.

The previous prime is 16804903. The next prime is 16804933. The reversal of 16804925 is 52940861.

It can be written as a sum of positive squares in 6 ways, for example, as 1951609 + 14853316 = 1397^2 + 3854^2 .

It is not a de Polignac number, because 16804925 - 2⁶ = 16804861 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19346 + ... + 20195.

It is an arithmetic number, because the mean of its divisors is an integer number (1838703).

Almost surely, 2^16804925 is an apocalyptic number.

It is an amenable number.

16804925 is a deficient number, since it is larger than the sum of its proper divisors (5259511).

16804925 is a wasteful number, since it uses less digits than its factorization.

16804925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39568 (or 39563 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 16804925 is about 4099.3810508417. The cubic root of 16804925 is about 256.1408577443.

The spelling of 16804925 in words is "sixteen million, eight hundred four thousand, nine hundred twenty-five".