203425 has 12 divisors (see below), whose sum is σ = 257920. Its totient is φ = 159120.

The previous prime is 203419. The next prime is 203429. The reversal of 203425 is 524302.

It is not a de Polignac number, because 203425 - 2³ = 203417 is a prime.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 203399 and 203408.

It is not an unprimeable number, because it can be changed into a prime (203429) 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, 1924 + ... + 2026.

2²⁰³⁴²⁵ is an apocalyptic number.

203425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

203425 is a deficient number, since it is larger than the sum of its proper divisors (54495).

203425 is a wasteful number, since it uses less digits than its factorization.

203425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 203425 is about 451.0266067540. The cubic root of 203425 is about 58.8122924614.

Adding to 203425 its reverse (524302), we get a palindrome (727727).

The spelling of 203425 in words is "two hundred three thousand, four hundred twenty-five".