520368705 has 48 divisors (see below), whose sum is σ = 938770560. Its totient is φ = 276524928.

The previous prime is 520368701. The next prime is 520368707. The reversal of 520368705 is 507863025.

520368705 is a `hidden beast` number, since 520 + 3 + 68 + 70 + 5 = 666.

It is not a de Polignac number, because 520368705 - 2² = 520368701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 520368705.

It is not an unprimeable number, because it can be changed into a prime (520368701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 435589 + ... + 436781.

It is an arithmetic number, because the mean of its divisors is an integer number (19557720).

Almost surely, 2^520368705 is an apocalyptic number.

It is an amenable number.

520368705 is a deficient number, since it is larger than the sum of its proper divisors (418401855).

520368705 is a wasteful number, since it uses less digits than its factorization.

520368705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572 (or 1560 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 520368705 is about 22811.5914613602. The cubic root of 520368705 is about 804.3351660063.

The spelling of 520368705 in words is "five hundred twenty million, three hundred sixty-eight thousand, seven hundred five".