518008801 has 4 divisors (see below), whose sum is σ = 530643204. Its totient is φ = 505374400.

The previous prime is 518008793. The next prime is 518008807. The reversal of 518008801 is 108800815.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 108800815 = 5 ⋅21760163.

It can be written as a sum of positive squares in 2 ways, for example, as 141610000 + 376398801 = 11900^2 + 19401^2 .

It is a cyclic number.

It is not a de Polignac number, because 518008801 - 2³ = 518008793 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (518008807) 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, 6317140 + ... + 6317221.

It is an arithmetic number, because the mean of its divisors is an integer number (132660801).

Almost surely, 2^518008801 is an apocalyptic number.

It is an amenable number.

518008801 is a deficient number, since it is larger than the sum of its proper divisors (12634403).

518008801 is a wasteful number, since it uses less digits than its factorization.

518008801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12634402.

The product of its (nonzero) digits is 2560, while the sum is 31.

The square root of 518008801 is about 22759.8066995306. The cubic root of 518008801 is about 803.1174201892.

The spelling of 518008801 in words is "five hundred eighteen million, eight thousand, eight hundred one".