50018 has 8 divisors (see below), whose sum is σ = 76140. Its totient is φ = 24640.

The previous prime is 49999. The next prime is 50021. The reversal of 50018 is 81005.

50018 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in 2 ways, for example, as 49729 + 289 = 223^2 + 17^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 49984 and 50011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38 + ... + 318.

2⁵⁰⁰¹⁸ is an apocalyptic number.

50018 is a deficient number, since it is larger than the sum of its proper divisors (26122).

50018 is a wasteful number, since it uses less digits than its factorization.

50018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 50018 is about 223.6470433518. The cubic root of 50018 is about 36.8447352938.

The spelling of 50018 in words is "fifty thousand, eighteen".