65579 has 2 divisors, whose sum is σ = 65580. Its totient is φ = 65578.

The previous prime is 65563. The next prime is 65581. The reversal of 65579 is 97556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65579 - 2⁴ = 65563 is a prime.

Together with 65581, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 6 and base 15.

It is not a weakly prime, because it can be changed into another prime (65519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32789 + 32790.

It is an arithmetic number, because the mean of its divisors is an integer number (32790).

2⁶⁵⁵⁷⁹ is an apocalyptic number.

65579 is a deficient number, since it is larger than the sum of its proper divisors (1).

65579 is an equidigital number, since it uses as much as digits as its factorization.

65579 is an odious number, because the sum of its binary digits is odd.

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

The square root of 65579 is about 256.0839706034. The cubic root of 65579 is about 40.3262894756.

The spelling of 65579 in words is "sixty-five thousand, five hundred seventy-nine".