204500354225 has 12 divisors (see below), whose sum is σ = 253957251276. Its totient is φ = 163357178880.

The previous prime is 204500354207. The next prime is 204500354243. The reversal of 204500354225 is 522453005402.

It is an interprime number because it is at equal distance from previous prime (204500354207) and next prime (204500354243).

It can be written as a sum of positive squares in 6 ways, for example, as 4661281 + 204495692944 = 2159^2 + 452212^2 .

It is not a de Polignac number, because 204500354225 - 2¹² = 204500350129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204500354191 and 204500354200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6060452 + ... + 6094101.

It is an arithmetic number, because the mean of its divisors is an integer number (21163104273).

Almost surely, 2^204500354225 is an apocalyptic number.

204500354225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204500354225 is a deficient number, since it is larger than the sum of its proper divisors (49456897051).

204500354225 is a wasteful number, since it uses less digits than its factorization.

204500354225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12155236 (or 12155231 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 32.

Adding to 204500354225 its reverse (522453005402), we get a palindrome (726953359627).

The spelling of 204500354225 in words is "two hundred four billion, five hundred million, three hundred fifty-four thousand, two hundred twenty-five".