518390056050 has 24 divisors (see below), whose sum is σ = 1285607339376. Its totient is φ = 138237348240.

The previous prime is 518390056039. The next prime is 518390056117. The reversal of 518390056050 is 50650093815.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 518390055993 and 518390056011.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1727966704 + ... + 1727967003.

It is an arithmetic number, because the mean of its divisors is an integer number (53566972474).

Almost surely, 2^518390056050 is an apocalyptic number.

518390056050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

518390056050 is an abundant number, since it is smaller than the sum of its proper divisors (767217283326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

518390056050 is a wasteful number, since it uses less digits than its factorization.

518390056050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3455933722 (or 3455933717 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 518390056050 in words is "five hundred eighteen billion, three hundred ninety million, fifty-six thousand, fifty".