204606952225 has 27 divisors (see below), whose sum is σ = 274769718393. Its totient is φ = 151072652640.

The previous prime is 204606952181. The next prime is 204606952243. The reversal of 204606952225 is 522259606402.

The square root of 204606952225 is 452335.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 52737744609 + 151869207616 = 229647^2 + 389704^2 .

It is not a de Polignac number, because 204606952225 - 2²⁷ = 204472734497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 29398296 + ... + 29405254.

Almost surely, 2^204606952225 is an apocalyptic number.

204606952225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

204606952225 is the 452335-th square number.

204606952225 is the 226168-th centered octagonal number.

It is an amenable number.

204606952225 is a deficient number, since it is larger than the sum of its proper divisors (70162766168).

204606952225 is an frugal number, since it uses more digits than its factorization.

204606952225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13954 (or 6977 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 204606952225 in words is "two hundred four billion, six hundred six million, nine hundred fifty-two thousand, two hundred twenty-five".