520718163 has 32 divisors (see below), whose sum is σ = 828237312. Its totient is φ = 284793600.

The previous prime is 520718111. The next prime is 520718167. The reversal of 520718163 is 361817025.

It is not a de Polignac number, because 520718163 - 2¹⁰ = 520717139 is a prime.

It is a super-2 number, since 2×520718163² = 542294810556189138, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520718167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39928 + ... + 51338.

It is an arithmetic number, because the mean of its divisors is an integer number (25882416).

Almost surely, 2^520718163 is an apocalyptic number.

520718163 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

520718163 is a deficient number, since it is larger than the sum of its proper divisors (307519149).

520718163 is a wasteful number, since it uses less digits than its factorization.

520718163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11515.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 520718163 is about 22819.2498342956. The cubic root of 520718163 is about 804.5151784080.

The spelling of 520718163 in words is "five hundred twenty million, seven hundred eighteen thousand, one hundred sixty-three".