520115005 has 8 divisors (see below), whose sum is σ = 624260952. Its totient is φ = 416010048.

The previous prime is 520114981. The next prime is 520115041. The reversal of 520115005 is 500511025.

It can be written as a sum of positive squares in 4 ways, for example, as 20994724 + 499120281 = 4582^2 + 22341^2 .

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-520115005 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40779 + ... + 51991.

It is an arithmetic number, because the mean of its divisors is an integer number (78032619).

Almost surely, 2^520115005 is an apocalyptic number.

It is an amenable number.

520115005 is a deficient number, since it is larger than the sum of its proper divisors (104145947).

520115005 is a wasteful number, since it uses less digits than its factorization.

520115005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20495.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 520115005 is about 22806.0300140116. The cubic root of 520115005 is about 804.2044298564.

The spelling of 520115005 in words is "five hundred twenty million, one hundred fifteen thousand, five".