516722471 has 2 divisors, whose sum is σ = 516722472. Its totient is φ = 516722470.

The previous prime is 516722449. The next prime is 516722473. The reversal of 516722471 is 174227615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 516722471 - 2⁶ = 516722407 is a prime.

It is a super-3 number, since 3×516722471³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 516722473, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516722473) 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, 258361235 + 258361236.

It is an arithmetic number, because the mean of its divisors is an integer number (258361236).

Almost surely, 2^516722471 is an apocalyptic number.

516722471 is a deficient number, since it is larger than the sum of its proper divisors (1).

516722471 is an equidigital number, since it uses as much as digits as its factorization.

516722471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23520, while the sum is 35.

The square root of 516722471 is about 22731.5303268390. The cubic root of 516722471 is about 802.4520966608.

The spelling of 516722471 in words is "five hundred sixteen million, seven hundred twenty-two thousand, four hundred seventy-one".