530605 has 4 divisors (see below), whose sum is σ = 636732. Its totient is φ = 424480.

The previous prime is 530603. The next prime is 530609. The reversal of 530605 is 506035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 506035 = 5 ⋅101207.

It can be written as a sum of positive squares in 2 ways, for example, as 335241 + 195364 = 579^2 + 442^2 .

It is not a de Polignac number, because 530605 - 2¹ = 530603 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530603) 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, 53056 + ... + 53065.

It is an arithmetic number, because the mean of its divisors is an integer number (159183).

2⁵³⁰⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

530605 is a deficient number, since it is larger than the sum of its proper divisors (106127).

530605 is a wasteful number, since it uses less digits than its factorization.

530605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106126.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 530605 is about 728.4263861229. The cubic root of 530605 is about 80.9575045090.

The spelling of 530605 in words is "five hundred thirty thousand, six hundred five".