200554395889 has 9 divisors (see below), whose sum is σ = 209664040089. Its totient is φ = 191824787220.

The previous prime is 200554395887. The next prime is 200554395907. The reversal of 200554395889 is 988593455002.

The square root of 200554395889 is 447833.

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

It is not a de Polignac number, because 200554395889 - 2¹ = 200554395887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200554395887) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10290424 + ... + 10309894.

Almost surely, 2^200554395889 is an apocalyptic number.

200554395889 is the 447833-rd square number.

200554395889 is the 223917-th centered octagonal number.

It is an amenable number.

200554395889 is a deficient number, since it is larger than the sum of its proper divisors (9109644200).

200554395889 is an frugal number, since it uses more digits than its factorization.

200554395889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38988 (or 19494 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 58.

The spelling of 200554395889 in words is "two hundred billion, five hundred fifty-four million, three hundred ninety-five thousand, eight hundred eighty-nine".