65089 has 2 divisors, whose sum is σ = 65090. Its totient is φ = 65088.

The previous prime is 65071. The next prime is 65099. The reversal of 65089 is 98056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65025 + 64 = 255^2 + 8^2 .

It is a cyclic number.

It is not a de Polignac number, because 65089 - 2⁹ = 64577 is a prime.

It is a plaindrome in base 15.

It is a nialpdrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65029) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32544 + 32545.

It is an arithmetic number, because the mean of its divisors is an integer number (32545).

2⁶⁵⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

65089 is a deficient number, since it is larger than the sum of its proper divisors (1).

65089 is an equidigital number, since it uses as much as digits as its factorization.

65089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 65089 is about 255.1254593332. The cubic root of 65089 is about 40.2256002214.

The spelling of 65089 in words is "sixty-five thousand, eighty-nine".