516043289 has 2 divisors, whose sum is σ = 516043290. Its totient is φ = 516043288.

The previous prime is 516043277. The next prime is 516043327. The reversal of 516043289 is 982340615.

It is a happy number.

It is an a-pointer prime, because the next prime (516043327) can be obtained adding 516043289 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 397603600 + 118439689 = 19940^2 + 10883^2 .

It is a cyclic number.

It is not a de Polignac number, because 516043289 - 2²⁴ = 499266073 is a prime.

It is a super-2 number, since 2×516043289² = 532601352243875042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (516040289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258021644 + 258021645.

It is an arithmetic number, because the mean of its divisors is an integer number (258021645).

Almost surely, 2^516043289 is an apocalyptic number.

It is an amenable number.

516043289 is a deficient number, since it is larger than the sum of its proper divisors (1).

516043289 is an equidigital number, since it uses as much as digits as its factorization.

516043289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 516043289 is about 22716.5862091997. The cubic root of 516043289 is about 802.1003604690.

The spelling of 516043289 in words is "five hundred sixteen million, forty-three thousand, two hundred eighty-nine".