203404425 has 24 divisors (see below), whose sum is σ = 384338496. Its totient is φ = 92984640.

The previous prime is 203404393. The next prime is 203404451. The reversal of 203404425 is 524404302.

203404425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203404425 - 2⁵ = 203404393 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 203404395 and 203404404.

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, 193194 + ... + 194243.

It is an arithmetic number, because the mean of its divisors is an integer number (16014104).

Almost surely, 2^203404425 is an apocalyptic number.

203404425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

203404425 is a deficient number, since it is larger than the sum of its proper divisors (180934071).

203404425 is a wasteful number, since it uses less digits than its factorization.

203404425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387457 (or 387452 counting only the distinct ones).

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

The square root of 203404425 is about 14261.9923222529. The cubic root of 203404425 is about 588.1030957874.

Adding to 203404425 its reverse (524404302), we get a palindrome (727808727).

The spelling of 203404425 in words is "two hundred three million, four hundred four thousand, four hundred twenty-five".