289528890257 has 2 divisors, whose sum is σ = 289528890258. Its totient is φ = 289528890256.

The previous prime is 289528890229. The next prime is 289528890317. The reversal of 289528890257 is 752098825982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 250656430336 + 38872459921 = 500656^2 + 197161^2 .

It is a cyclic number.

It is not a de Polignac number, because 289528890257 - 2²⁴ = 289512113041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 289528890193 and 289528890202.

It is not a weakly prime, because it can be changed into another prime (289528890227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144764445128 + 144764445129.

It is an arithmetic number, because the mean of its divisors is an integer number (144764445129).

Almost surely, 2^289528890257 is an apocalyptic number.

It is an amenable number.

289528890257 is a deficient number, since it is larger than the sum of its proper divisors (1).

289528890257 is an equidigital number, since it uses as much as digits as its factorization.

289528890257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58060800, while the sum is 65.

The spelling of 289528890257 in words is "two hundred eighty-nine billion, five hundred twenty-eight million, eight hundred ninety thousand, two hundred fifty-seven".