203424225 has 24 divisors (see below), whose sum is σ = 343489920. Its totient is φ = 106182720.

The previous prime is 203424217. The next prime is 203424233. The reversal of 203424225 is 522424302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (203424217) and next prime (203424233).

It is not a de Polignac number, because 203424225 - 2³ = 203424217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 203424195 and 203424204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25330 + ... + 32379.

It is an arithmetic number, because the mean of its divisors is an integer number (14312080).

Almost surely, 2^203424225 is an apocalyptic number.

203424225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

203424225 is a deficient number, since it is larger than the sum of its proper divisors (140065695).

203424225 is a wasteful number, since it uses less digits than its factorization.

203424225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57769 (or 57764 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 203424225 is about 14262.6864580275. The cubic root of 203424225 is about 588.1221777445.

Adding to 203424225 its reverse (522424302), we get a palindrome (725848527).

The spelling of 203424225 in words is "two hundred three million, four hundred twenty-four thousand, two hundred twenty-five".