200660550 has 48 divisors (see below), whose sum is σ = 499588560. Its totient is φ = 53299840.

The previous prime is 200660543. The next prime is 200660561. The reversal of 200660550 is 55066002.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 200660550.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37864 + ... + 42836.

It is an arithmetic number, because the mean of its divisors is an integer number (10408095).

Almost surely, 2^200660550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200660550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249794280).

200660550 is an abundant number, since it is smaller than the sum of its proper divisors (298928010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200660550 is a wasteful number, since it uses less digits than its factorization.

200660550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5257 (or 5252 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 200660550 is about 14165.4703416441. The cubic root of 200660550 is about 585.4466601204.

The spelling of 200660550 in words is "two hundred million, six hundred sixty thousand, five hundred fifty".