2560020209 has 8 divisors (see below), whose sum is σ = 2580735168. Its totient is φ = 2539323280.

The previous prime is 2560020181. The next prime is 2560020227. The reversal of 2560020209 is 9020200652.

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

It is a cyclic number.

It is not a de Polignac number, because 2560020209 - 2²⁰ = 2558971633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2560020289) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 522479 + ... + 527355.

It is an arithmetic number, because the mean of its divisors is an integer number (322591896).

Almost surely, 2^2560020209 is an apocalyptic number.

It is an amenable number.

2560020209 is a deficient number, since it is larger than the sum of its proper divisors (20714959).

2560020209 is a wasteful number, since it uses less digits than its factorization.

2560020209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9015.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2560020209 is about 50596.6422700163. The cubic root of 2560020209 is about 1367.9843570094.

The spelling of 2560020209 in words is "two billion, five hundred sixty million, twenty thousand, two hundred nine".