520918099 has 16 divisors (see below), whose sum is σ = 594139392. Its totient is φ = 453058848.

The previous prime is 520918067. The next prime is 520918127. The reversal of 520918099 is 990819025.

It is a cyclic number.

It is not a de Polignac number, because 520918099 - 2⁵ = 520918067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520918009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7032 + ... + 33034.

It is an arithmetic number, because the mean of its divisors is an integer number (37133712).

Almost surely, 2^520918099 is an apocalyptic number.

520918099 is a deficient number, since it is larger than the sum of its proper divisors (73221293).

520918099 is a wasteful number, since it uses less digits than its factorization.

520918099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26106.

The product of its (nonzero) digits is 58320, while the sum is 43.

The square root of 520918099 is about 22823.6302765358. The cubic root of 520918099 is about 804.6181329910.

The spelling of 520918099 in words is "five hundred twenty million, nine hundred eighteen thousand, ninety-nine".