204450225 has 48 divisors (see below), whose sum is σ = 389022720. Its totient is φ = 92808000.

The previous prime is 204450221. The next prime is 204450229. The reversal of 204450225 is 522054402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (204450221) and next prime (204450229).

It is not a de Polignac number, because 204450225 - 2² = 204450221 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 204450195 and 204450204.

It is not an unprimeable number, because it can be changed into a prime (204450221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77986 + ... + 80564.

It is an arithmetic number, because the mean of its divisors is an integer number (8104640).

Almost surely, 2^204450225 is an apocalyptic number.

204450225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204450225 is a deficient number, since it is larger than the sum of its proper divisors (184572495).

204450225 is a wasteful number, since it uses less digits than its factorization.

204450225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750 (or 2745 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 204450225 is about 14298.6091981004. The cubic root of 204450225 is about 589.1092803038.

The spelling of 204450225 in words is "two hundred four million, four hundred fifty thousand, two hundred twenty-five".