500050018 has 64 divisors (see below), whose sum is σ = 881798400. Its totient is φ = 210712320.

The previous prime is 500050007. The next prime is 500050027. The reversal of 500050018 is 810050005.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 500049977 and 500050004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1858788 + ... + 1859056.

It is an arithmetic number, because the mean of its divisors is an integer number (13778100).

Almost surely, 2^500050018 is an apocalyptic number.

500050018 is a deficient number, since it is larger than the sum of its proper divisors (381748382).

500050018 is a wasteful number, since it uses less digits than its factorization.

500050018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 500050018 is about 22361.7981835093. The cubic root of 500050018 is about 793.7269913102.

The spelling of 500050018 in words is "five hundred million, fifty thousand, eighteen".