520711069 has 8 divisors (see below), whose sum is σ = 528988320. Its totient is φ = 512448816.

The previous prime is 520711063. The next prime is 520711091. The reversal of 520711069 is 960117025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520711069 is a prime.

It is a super-2 number, since 2×520711069² = 542280034758245522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520711069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520711063) 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 7 ways as a sum of consecutive naturals, for example, 81267 + ... + 87439.

It is an arithmetic number, because the mean of its divisors is an integer number (66123540).

Almost surely, 2^520711069 is an apocalyptic number.

It is an amenable number.

520711069 is a deficient number, since it is larger than the sum of its proper divisors (8277251).

520711069 is a wasteful number, since it uses less digits than its factorization.

520711069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7499.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 520711069 is about 22819.0943948265. The cubic root of 520711069 is about 804.5115249559.

The spelling of 520711069 in words is "five hundred twenty million, seven hundred eleven thousand, sixty-nine".