206057650825 has 12 divisors (see below), whose sum is σ = 275166217228. Its totient is φ = 152165649600.

The previous prime is 206057650819. The next prime is 206057650853. The reversal of 206057650825 is 528056750602.

It can be written as a sum of positive squares in 6 ways, for example, as 36540998649 + 169516652176 = 191157^2 + 411724^2 .

It is not a de Polignac number, because 206057650825 - 2¹¹ = 206057648777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 317011446 + ... + 317012095.

Almost surely, 2^206057650825 is an apocalyptic number.

206057650825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

206057650825 is a deficient number, since it is larger than the sum of its proper divisors (69108566403).

206057650825 is a wasteful number, since it uses less digits than its factorization.

206057650825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634023564 (or 634023559 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 206057650825 in words is "two hundred six billion, fifty-seven million, six hundred fifty thousand, eight hundred twenty-five".