65959 has 4 divisors (see below), whose sum is σ = 66960. Its totient is φ = 64960.

The previous prime is 65957. The next prime is 65963. The reversal of 65959 is 95956.

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 65959 - 2¹ = 65957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394 + ... + 535.

It is an arithmetic number, because the mean of its divisors is an integer number (16740).

2⁶⁵⁹⁵⁹ is an apocalyptic number.

65959 is a deficient number, since it is larger than the sum of its proper divisors (1001).

65959 is an equidigital number, since it uses as much as digits as its factorization.

65959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000.

The product of its digits is 12150, while the sum is 34.

The square root of 65959 is about 256.8248430351. The cubic root of 65959 is about 40.4040302485.

It can be divided in two parts, 65 and 959, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 65959 in words is "sixty-five thousand, nine hundred fifty-nine".