206505010 has 8 divisors (see below), whose sum is σ = 371709036. Its totient is φ = 82602000.

The previous prime is 206505007. The next prime is 206505023. The reversal of 206505010 is 10505602.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 190688481 + 15816529 = 13809^2 + 3977^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10325241 + ... + 10325260.

Almost surely, 2^206505010 is an apocalyptic number.

206505010 is a deficient number, since it is larger than the sum of its proper divisors (165204026).

206505010 is a wasteful number, since it uses less digits than its factorization.

206505010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20650508.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 206505010 is about 14370.2821823373. The cubic root of 206505010 is about 591.0762792549.

The spelling of 206505010 in words is "two hundred six million, five hundred five thousand, ten".