516289 has 4 divisors (see below), whose sum is σ = 522180. Its totient is φ = 510400.

The previous prime is 516283. The next prime is 516293. The reversal of 516289 is 982615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 982615 = 5 ⋅196523.

It can be written as a sum of positive squares in 2 ways, for example, as 339889 + 176400 = 583^2 + 420^2 .

It is a cyclic number.

It is not a de Polignac number, because 516289 - 2⁷ = 516161 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 516289.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516283) 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, 2812 + ... + 2989.

It is an arithmetic number, because the mean of its divisors is an integer number (130545).

2⁵¹⁶²⁸⁹ is an apocalyptic number.

It is an amenable number.

516289 is a deficient number, since it is larger than the sum of its proper divisors (5891).

516289 is an equidigital number, since it uses as much as digits as its factorization.

516289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5890.

The product of its digits is 4320, while the sum is 31.

The square root of 516289 is about 718.5325323185. The cubic root of 516289 is about 80.2227645404. Note that the first 3 decimals are identical.

The spelling of 516289 in words is "five hundred sixteen thousand, two hundred eighty-nine".