516716517 has 4 divisors (see below), whose sum is σ = 688955360. Its totient is φ = 344477676.

The previous prime is 516716503. The next prime is 516716561. The reversal of 516716517 is 715617615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 516716517 - 2¹⁴ = 516700133 is a prime.

It is a super-2 number, since 2×516716517² = 533991917881222578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516716567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86119417 + ... + 86119422.

It is an arithmetic number, because the mean of its divisors is an integer number (172238840).

Almost surely, 2^516716517 is an apocalyptic number.

It is an amenable number.

516716517 is a deficient number, since it is larger than the sum of its proper divisors (172238843).

516716517 is a wasteful number, since it uses less digits than its factorization.

516716517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172238842.

The product of its digits is 44100, while the sum is 39.

The square root of 516716517 is about 22731.3993629957. The cubic root of 516716517 is about 802.4490145304.

The spelling of 516716517 in words is "five hundred sixteen million, seven hundred sixteen thousand, five hundred seventeen".