204425225 has 24 divisors (see below), whose sum is σ = 260578560. Its totient is φ = 159001920.

The previous prime is 204425209. The next prime is 204425227. The reversal of 204425225 is 522524402.

It is not a de Polignac number, because 204425225 - 2⁴ = 204425209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204425194 and 204425203.

It is not an unprimeable number, because it can be changed into a prime (204425227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 426536 + ... + 427014.

It is an arithmetic number, because the mean of its divisors is an integer number (10857440).

Almost surely, 2^204425225 is an apocalyptic number.

204425225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204425225 is a deficient number, since it is larger than the sum of its proper divisors (56153335).

204425225 is a wasteful number, since it uses less digits than its factorization.

204425225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929 (or 924 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 204425225 is about 14297.7349604754. The cubic root of 204425225 is about 589.0852673974.

Adding to 204425225 its reverse (522524402), we get a palindrome (726949627).

The spelling of 204425225 in words is "two hundred four million, four hundred twenty-five thousand, two hundred twenty-five".