516443071 has 2 divisors, whose sum is σ = 516443072. Its totient is φ = 516443070.

The previous prime is 516443069. The next prime is 516443111. The reversal of 516443071 is 170344615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 516443071 - 2¹ = 516443069 is a prime.

It is a super-2 number, since 2×516443071² = 533426891167822082, which contains 22 as substring.

Together with 516443069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516443041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258221535 + 258221536.

It is an arithmetic number, because the mean of its divisors is an integer number (258221536).

Almost surely, 2^516443071 is an apocalyptic number.

516443071 is a deficient number, since it is larger than the sum of its proper divisors (1).

516443071 is an equidigital number, since it uses as much as digits as its factorization.

516443071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 516443071 is about 22725.3838471433. The cubic root of 516443071 is about 802.3074377443.

Adding to 516443071 its reverse (170344615), we get a palindrome (686787686).

The spelling of 516443071 in words is "five hundred sixteen million, four hundred forty-three thousand, seventy-one".