520575517171 has 16 divisors (see below), whose sum is σ = 524213951040. Its totient is φ = 516953162880.

The previous prime is 520575517123. The next prime is 520575517183. The reversal of 520575517171 is 171715575025.

It is a cyclic number.

It is not a de Polignac number, because 520575517171 - 2¹¹ = 520575515123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520555517171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123094485 + ... + 123098713.

It is an arithmetic number, because the mean of its divisors is an integer number (32763371940).

Almost surely, 2^520575517171 is an apocalyptic number.

520575517171 is a deficient number, since it is larger than the sum of its proper divisors (3638433869).

520575517171 is a wasteful number, since it uses less digits than its factorization.

520575517171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5934.

The product of its (nonzero) digits is 428750, while the sum is 46.

The spelling of 520575517171 in words is "five hundred twenty billion, five hundred seventy-five million, five hundred seventeen thousand, one hundred seventy-one".