16925 has 6 divisors (see below), whose sum is σ = 21018. Its totient is φ = 13520.

The previous prime is 16921. The next prime is 16927. The reversal of 16925 is 52961.

16925 = 13² + 14² + ... + 37².

It can be written as a sum of positive squares in 3 ways, for example, as 5476 + 11449 = 74^2 + 107^2 .

It is not a de Polignac number, because 16925 - 2² = 16921 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 16925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16921) 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, 314 + ... + 363.

It is an arithmetic number, because the mean of its divisors is an integer number (3503).

2¹⁶⁹²⁵ is an apocalyptic number.

It is an amenable number.

16925 is a deficient number, since it is larger than the sum of its proper divisors (4093).

16925 is an equidigital number, since it uses as much as digits as its factorization.

16925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687 (or 682 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

The square root of 16925 is about 130.0961183126. The cubic root of 16925 is about 25.6749471980.

It can be divided in two parts, 169 and 25, that multiplied together give a square (4225 = 65²).

The spelling of 16925 in words is "sixteen thousand, nine hundred twenty-five".