2589221209 has 2 divisors, whose sum is σ = 2589221210. Its totient is φ = 2589221208.

The previous prime is 2589221191. The next prime is 2589221293. The reversal of 2589221209 is 9021229852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1950547225 + 638673984 = 44165^2 + 25272^2 .

It is a cyclic number.

It is not a de Polignac number, because 2589221209 - 2¹¹ = 2589219161 is a prime.

It is not a weakly prime, because it can be changed into another prime (2589221309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1294610604 + 1294610605.

It is an arithmetic number, because the mean of its divisors is an integer number (1294610605).

Almost surely, 2^2589221209 is an apocalyptic number.

It is an amenable number.

2589221209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2589221209 is an equidigital number, since it uses as much as digits as its factorization.

2589221209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 2589221209 is about 50884.3906222724. The cubic root of 2589221209 is about 1373.1660325717.

The spelling of 2589221209 in words is "two billion, five hundred eighty-nine million, two hundred twenty-one thousand, two hundred nine".