2689255297 has 2 divisors, whose sum is σ = 2689255298. Its totient is φ = 2689255296.

The previous prime is 2689255291. The next prime is 2689255319. The reversal of 2689255297 is 7925529862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2405804401 + 283450896 = 49049^2 + 16836^2 .

It is a cyclic number.

It is not a de Polignac number, because 2689255297 - 2⁷ = 2689255169 is a prime.

It is not a weakly prime, because it can be changed into another prime (2689255291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1344627648 + 1344627649.

It is an arithmetic number, because the mean of its divisors is an integer number (1344627649).

Almost surely, 2^2689255297 is an apocalyptic number.

It is an amenable number.

2689255297 is a deficient number, since it is larger than the sum of its proper divisors (1).

2689255297 is an equidigital number, since it uses as much as digits as its factorization.

2689255297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5443200, while the sum is 55.

The square root of 2689255297 is about 51858.0302074809. The cubic root of 2689255297 is about 1390.6270650355.

The spelling of 2689255297 in words is "two billion, six hundred eighty-nine million, two hundred fifty-five thousand, two hundred ninety-seven".