260569 has 2 divisors, whose sum is σ = 260570. Its totient is φ = 260568.

The previous prime is 260551. The next prime is 260573. The reversal of 260569 is 965062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170569 + 90000 = 413^2 + 300^2 .

It is a cyclic number.

It is not a de Polignac number, because 260569 - 2⁷ = 260441 is a prime.

It is a super-2 number, since 2×260569² = 135792407522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (260539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130284 + 130285.

It is an arithmetic number, because the mean of its divisors is an integer number (130285).

2²⁶⁰⁵⁶⁹ is an apocalyptic number.

It is an amenable number.

260569 is a deficient number, since it is larger than the sum of its proper divisors (1).

260569 is an equidigital number, since it uses as much as digits as its factorization.

260569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 260569 is about 510.4595968341. The cubic root of 260569 is about 63.8715686158.

The spelling of 260569 in words is "two hundred sixty thousand, five hundred sixty-nine".