520171005 has 8 divisors (see below), whose sum is σ = 832273632. Its totient is φ = 277424528.

The previous prime is 520170983. The next prime is 520171019. The reversal of 520171005 is 500171025.

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

It is a cyclic number.

It is not a de Polignac number, because 520171005 - 2¹⁰ = 520169981 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 17339019 + ... + 17339048.

It is an arithmetic number, because the mean of its divisors is an integer number (104034204).

Almost surely, 2^520171005 is an apocalyptic number.

It is an amenable number.

520171005 is a deficient number, since it is larger than the sum of its proper divisors (312102627).

520171005 is a wasteful number, since it uses less digits than its factorization.

520171005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34678075.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 520171005 is about 22807.2577264344. The cubic root of 520171005 is about 804.2332913143.

The spelling of 520171005 in words is "five hundred twenty million, one hundred seventy-one thousand, five".