516768505 has 16 divisors (see below), whose sum is σ = 681048000. Its totient is φ = 373303360.

The previous prime is 516768503. The next prime is 516768509. The reversal of 516768505 is 505867615.

It is not a de Polignac number, because 516768505 - 2¹ = 516768503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (516768503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23335 + ... + 39724.

It is an arithmetic number, because the mean of its divisors is an integer number (42565500).

Almost surely, 2^516768505 is an apocalyptic number.

516768505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

516768505 is a deficient number, since it is larger than the sum of its proper divisors (164279495).

516768505 is a wasteful number, since it uses less digits than its factorization.

516768505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63224.

The product of its (nonzero) digits is 252000, while the sum is 43.

The square root of 516768505 is about 22732.5428626012. The cubic root of 516768505 is about 802.4759256890.

The spelling of 516768505 in words is "five hundred sixteen million, seven hundred sixty-eight thousand, five hundred five".