516020565 has 16 divisors (see below), whose sum is σ = 827224128. Its totient is φ = 274680576.

The previous prime is 516020551. The next prime is 516020569. The reversal of 516020565 is 565020615.

It is not a de Polignac number, because 516020565 - 2⁷ = 516020437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516020569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25044 + ... + 40733.

It is an arithmetic number, because the mean of its divisors is an integer number (51701508).

Almost surely, 2^516020565 is an apocalyptic number.

It is an amenable number.

516020565 is a deficient number, since it is larger than the sum of its proper divisors (311203563).

516020565 is a wasteful number, since it uses less digits than its factorization.

516020565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66308.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 516020565 is about 22716.0860405132. The cubic root of 516020565 is about 802.0885867822.

Subtracting 516020565 from its reverse (565020615), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 516020565 in words is "five hundred sixteen million, twenty thousand, five hundred sixty-five".