260533289 has 2 divisors, whose sum is σ = 260533290. Its totient is φ = 260533288.

The previous prime is 260533283. The next prime is 260533297. The reversal of 260533289 is 982335062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253350889 + 7182400 = 15917^2 + 2680^2 .

It is a cyclic number.

It is not a de Polignac number, because 260533289 - 2¹² = 260529193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (260533283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130266644 + 130266645.

It is an arithmetic number, because the mean of its divisors is an integer number (130266645).

Almost surely, 2^260533289 is an apocalyptic number.

It is an amenable number.

260533289 is a deficient number, since it is larger than the sum of its proper divisors (1).

260533289 is an equidigital number, since it uses as much as digits as its factorization.

260533289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 260533289 is about 16141.0436155783. The cubic root of 260533289 is about 638.6865061485.

The spelling of 260533289 in words is "two hundred sixty million, five hundred thirty-three thousand, two hundred eighty-nine".