516222769 has 2 divisors, whose sum is σ = 516222770. Its totient is φ = 516222768.

The previous prime is 516222701. The next prime is 516222781. The reversal of 516222769 is 967222615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 349503025 + 166719744 = 18695^2 + 12912^2 .

It is a cyclic number.

It is not a de Polignac number, because 516222769 - 2¹⁵ = 516190001 is a prime.

It is a super-2 number, since 2×516222769² = 532971894468054722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (516222269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258111384 + 258111385.

It is an arithmetic number, because the mean of its divisors is an integer number (258111385).

Almost surely, 2^516222769 is an apocalyptic number.

It is an amenable number.

516222769 is a deficient number, since it is larger than the sum of its proper divisors (1).

516222769 is an equidigital number, since it uses as much as digits as its factorization.

516222769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 516222769 is about 22720.5362832835. The cubic root of 516222769 is about 802.1933399335.

The spelling of 516222769 in words is "five hundred sixteen million, two hundred twenty-two thousand, seven hundred sixty-nine".