204625 has 8 divisors (see below), whose sum is σ = 255528. Its totient is φ = 163600.

The previous prime is 204623. The next prime is 204641. The reversal of 204625 is 526402.

It can be written as a sum of positive squares in 4 ways, for example, as 50176 + 154449 = 224^2 + 393^2 .

It is not a de Polignac number, because 204625 - 2¹ = 204623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 694 + ... + 943.

It is an arithmetic number, because the mean of its divisors is an integer number (31941).

2²⁰⁴⁶²⁵ is an apocalyptic number.

204625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204625 is a deficient number, since it is larger than the sum of its proper divisors (50903).

204625 is an equidigital number, since it uses as much as digits as its factorization.

204625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 204625 is about 452.3549491273. The cubic root of 204625 is about 58.9277099878.

The spelling of 204625 in words is "two hundred four thousand, six hundred twenty-five".