516500065 has 4 divisors (see below), whose sum is σ = 619800084. Its totient is φ = 413200048.

The previous prime is 516500059. The next prime is 516500081. The reversal of 516500065 is 560005615.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88341201 + 428158864 = 9399^2 + 20692^2 .

It is a cyclic number.

It is not a de Polignac number, because 516500065 - 2¹³ = 516491873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51650002 + ... + 51650011.

It is an arithmetic number, because the mean of its divisors is an integer number (154950021).

Almost surely, 2^516500065 is an apocalyptic number.

It is an amenable number.

516500065 is a deficient number, since it is larger than the sum of its proper divisors (103300019).

516500065 is a wasteful number, since it uses less digits than its factorization.

516500065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103300018.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 516500065 is about 22726.6377847670. The cubic root of 516500065 is about 802.3369505346.

The spelling of 516500065 in words is "five hundred sixteen million, five hundred thousand, sixty-five".