200556187225 has 9 divisors (see below), whose sum is σ = 248692448767. Its totient is φ = 160443158440.

The previous prime is 200556187213. The next prime is 200556187331. The reversal of 200556187225 is 522781655002.

The square root of 200556187225 is 447835.

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

It can be written as a sum of positive squares in only one way, i.e., 72200227401 + 128355959824 = 268701^2 + 358268^2 .

It is not a de Polignac number, because 200556187225 - 2⁹ = 200556186713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2194392 + ... + 2283958.

Almost surely, 2^200556187225 is an apocalyptic number.

200556187225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

200556187225 is the 447835-th square number.

200556187225 is the 223918-th centered octagonal number.

It is an amenable number.

200556187225 is a deficient number, since it is larger than the sum of its proper divisors (48136261542).

200556187225 is an frugal number, since it uses more digits than its factorization.

200556187225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179144 (or 89572 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 43.

The spelling of 200556187225 in words is "two hundred billion, five hundred fifty-six million, one hundred eighty-seven thousand, two hundred twenty-five".