65759 has 4 divisors (see below), whose sum is σ = 69240. Its totient is φ = 62280.

The previous prime is 65731. The next prime is 65761. The reversal of 65759 is 95756.

65759 is nontrivially palindromic in base 5.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65759 - 2¹⁶ = 223 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 65759.

It is not an unprimeable number, because it can be changed into a prime (65719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1712 + ... + 1749.

It is an arithmetic number, because the mean of its divisors is an integer number (17310).

2⁶⁵⁷⁵⁹ is an apocalyptic number.

65759 is a deficient number, since it is larger than the sum of its proper divisors (3481).

65759 is a wasteful number, since it uses less digits than its factorization.

65759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480.

The product of its digits is 9450, while the sum is 32.

The square root of 65759 is about 256.4351769941. The cubic root of 65759 is about 40.3631513827.

The spelling of 65759 in words is "sixty-five thousand, seven hundred fifty-nine".