516075881 has 2 divisors, whose sum is σ = 516075882. Its totient is φ = 516075880.

The previous prime is 516075841. The next prime is 516075883. The reversal of 516075881 is 188570615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 291555625 + 224520256 = 17075^2 + 14984^2 .

It is a cyclic number.

It is not a de Polignac number, because 516075881 - 2¹⁸ = 515813737 is a prime.

It is a super-2 number, since 2×516075881² = 532668629899852322, which contains 22 as substring.

Together with 516075883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (516075883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258037940 + 258037941.

It is an arithmetic number, because the mean of its divisors is an integer number (258037941).

Almost surely, 2^516075881 is an apocalyptic number.

It is an amenable number.

516075881 is a deficient number, since it is larger than the sum of its proper divisors (1).

516075881 is an equidigital number, since it uses as much as digits as its factorization.

516075881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 41.

The square root of 516075881 is about 22717.3035591815. The cubic root of 516075881 is about 802.1172463292.

The spelling of 516075881 in words is "five hundred sixteen million, seventy-five thousand, eight hundred eighty-one".