205200010 has 16 divisors (see below), whose sum is σ = 369565416. Its totient is φ = 82034368.

The previous prime is 205199989. The next prime is 205200049. The reversal of 205200010 is 10002502.

It can be written as a sum of positive squares in 4 ways, for example, as 136492489 + 68707521 = 11683^2 + 8289^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 205200010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17784 + ... + 26956.

Almost surely, 2^205200010 is an apocalyptic number.

205200010 is a deficient number, since it is larger than the sum of its proper divisors (164365406).

205200010 is a wasteful number, since it uses less digits than its factorization.

205200010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11417.

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 205200010 is about 14324.8040126209. The cubic root of 205200010 is about 589.8285530763.

Adding to 205200010 its reverse (10002502), we get a palindrome (215202512).

The spelling of 205200010 in words is "two hundred five million, two hundred thousand, ten".