64559 has 4 divisors (see below), whose sum is σ = 70440. Its totient is φ = 58680.

The previous prime is 64553. The next prime is 64567. The reversal of 64559 is 95546.

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 64559 - 2⁸ = 64303 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 (64553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2924 + ... + 2945.

It is an arithmetic number, because the mean of its divisors is an integer number (17610).

2⁶⁴⁵⁵⁹ is an apocalyptic number.

64559 is a deficient number, since it is larger than the sum of its proper divisors (5881).

64559 is a wasteful number, since it uses less digits than its factorization.

64559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5880.

The product of its digits is 5400, while the sum is 29.

The square root of 64559 is about 254.0846315699. The cubic root of 64559 is about 40.1161209055.

The spelling of 64559 in words is "sixty-four thousand, five hundred fifty-nine".