518385041 has 4 divisors (see below), whose sum is σ = 518617584. Its totient is φ = 518152500.

The previous prime is 518385031. The next prime is 518385061. The reversal of 518385041 is 140583815.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 518385041 - 2¹⁸ = 518122897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 518384992 and 518385010.

It is not an unprimeable number, because it can be changed into a prime (518385001) 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, 112895 + ... + 117396.

It is an arithmetic number, because the mean of its divisors is an integer number (129654396).

Almost surely, 2^518385041 is an apocalyptic number.

It is an amenable number.

518385041 is a deficient number, since it is larger than the sum of its proper divisors (232543).

518385041 is a wasteful number, since it uses less digits than its factorization.

518385041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232542.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 518385041 is about 22768.0706472903. The cubic root of 518385041 is about 803.3118131358.

The spelling of 518385041 in words is "five hundred eighteen million, three hundred eighty-five thousand, forty-one".