516718315 has 32 divisors (see below), whose sum is σ = 678490560. Its totient is φ = 376233984.

The previous prime is 516718291. The next prime is 516718331. The reversal of 516718315 is 513817615.

It is a 13-Lehmer number, since φ(516718315) divides (516718315-1)¹³.

It is a cyclic number.

It is not a de Polignac number, because 516718315 - 2¹³ = 516710123 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 397747 + ... + 399043.

It is an arithmetic number, because the mean of its divisors is an integer number (21202830).

Almost surely, 2^516718315 is an apocalyptic number.

516718315 is a deficient number, since it is larger than the sum of its proper divisors (161772245).

516718315 is a wasteful number, since it uses less digits than its factorization.

516718315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471.

The product of its digits is 25200, while the sum is 37.

The square root of 516718315 is about 22731.4389117803. The cubic root of 516718315 is about 802.4499452804.

The spelling of 516718315 in words is "five hundred sixteen million, seven hundred eighteen thousand, three hundred fifteen".