203825 has 12 divisors (see below), whose sum is σ = 261888. Its totient is φ = 157200.

The previous prime is 203821. The next prime is 203843. The reversal of 203825 is 528302.

It is not a de Polignac number, because 203825 - 2² = 203821 is a prime.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 203797 and 203806.

It is not an unprimeable number, because it can be changed into a prime (203821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 644 + ... + 906.

It is an arithmetic number, because the mean of its divisors is an integer number (21824).

2²⁰³⁸²⁵ is an apocalyptic number.

203825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

203825 is a deficient number, since it is larger than the sum of its proper divisors (58063).

203825 is a wasteful number, since it uses less digits than its factorization.

203825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 203825 is about 451.4698218043. The cubic root of 203825 is about 58.8508152824.

The spelling of 203825 in words is "two hundred three thousand, eight hundred twenty-five".