559813 has 2 divisors, whose sum is σ = 559814.
Its totient is φ = 559812.
The previous prime is 559807. The next prime is 559831. The reversal of 559813 is 318955.
Together with next prime (559831) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 431649 + 128164 = 657^2 + 358^2
It is a cyclic number.
It is not a de Polignac number, because 559813 - 25 = 559781 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (559883) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 279906 + 279907.
It is an arithmetic number, because the mean of its divisors is an integer number (279907).
559813 is a Friedman number, since it can be written as (5+1)^8/3-59, using all its digits and the basic arithmetic operations.
2559813 is an apocalyptic number.
It is an amenable number.
559813 is a deficient number, since it is larger than the sum of its proper divisors (1).
559813 is an equidigital number, since it uses as much as digits as its factorization.
559813 is an evil number, because the sum of its binary digits is even.
The product of its digits is 5400, while the sum is 31.
The square root of 559813 is about 748.2065222918.
The cubic root of 559813 is about 82.4165302087.
The spelling of 559813 in words is "five hundred fifty-nine thousand, eight hundred thirteen".