204222025 has 24 divisors (see below), whose sum is σ = 296481024. Its totient is φ = 136617600.

The previous prime is 204222001. The next prime is 204222041. The reversal of 204222025 is 520222402.

It is not a de Polignac number, because 204222025 - 2²¹ = 202124873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204221993 and 204222011.

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, 7057 + ... + 21406.

It is an arithmetic number, because the mean of its divisors is an integer number (12353376).

Almost surely, 2^204222025 is an apocalyptic number.

204222025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204222025 is a deficient number, since it is larger than the sum of its proper divisors (92258999).

204222025 is a wasteful number, since it uses less digits than its factorization.

204222025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28521 (or 28516 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 204222025 is about 14290.6271730810. The cubic root of 204222025 is about 588.8900178307.

Adding to 204222025 its reverse (520222402), we get a palindrome (724444427).

The spelling of 204222025 in words is "two hundred four million, two hundred twenty-two thousand, twenty-five".