520316618 has 8 divisors (see below), whose sum is σ = 781112640. Its totient is φ = 259945740.

The previous prime is 520316611. The next prime is 520316627. The reversal of 520316618 is 816613025.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (520316611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103208 + ... + 108131.

It is an arithmetic number, because the mean of its divisors is an integer number (97639080).

Almost surely, 2^520316618 is an apocalyptic number.

520316618 is a deficient number, since it is larger than the sum of its proper divisors (260796022).

520316618 is a wasteful number, since it uses less digits than its factorization.

520316618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212572.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 520316618 is about 22810.4497544437. The cubic root of 520316618 is about 804.3083281102.

The spelling of 520316618 in words is "five hundred twenty million, three hundred sixteen thousand, six hundred eighteen".