516516433 has 2 divisors, whose sum is σ = 516516434. Its totient is φ = 516516432.

The previous prime is 516516383. The next prime is 516516437. The reversal of 516516433 is 334615615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 477728449 + 38787984 = 21857^2 + 6228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516516433 is a prime.

It is not a weakly prime, because it can be changed into another prime (516516437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258258216 + 258258217.

It is an arithmetic number, because the mean of its divisors is an integer number (258258217).

Almost surely, 2^516516433 is an apocalyptic number.

It is an amenable number.

516516433 is a deficient number, since it is larger than the sum of its proper divisors (1).

516516433 is an equidigital number, since it uses as much as digits as its factorization.

516516433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 34.

The square root of 516516433 is about 22726.9978879746. The cubic root of 516516433 is about 802.3454258562.

The spelling of 516516433 in words is "five hundred sixteen million, five hundred sixteen thousand, four hundred thirty-three".