200523220 has 12 divisors (see below), whose sum is σ = 421098804. Its totient is φ = 80209280.

The previous prime is 200523199. The next prime is 200523227. The reversal of 200523220 is 22325002.

It can be written as a sum of positive squares in 2 ways, for example, as 91278916 + 109244304 = 9554^2 + 10452^2 .

It is a junction number, because it is equal to n+sod(n) for n = 200523194 and 200523203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200523227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5013061 + ... + 5013100.

It is an arithmetic number, because the mean of its divisors is an integer number (35091567).

Almost surely, 2^200523220 is an apocalyptic number.

200523220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200523220 is an abundant number, since it is smaller than the sum of its proper divisors (220575584).

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

200523220 is a wasteful number, since it uses less digits than its factorization.

200523220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10026170 (or 10026168 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 200523220 is about 14160.6221614730. The cubic root of 200523220 is about 585.3130717655.

Adding to 200523220 its reverse (22325002), we get a palindrome (222848222).

The spelling of 200523220 in words is "two hundred million, five hundred twenty-three thousand, two hundred twenty".