50311218 has 16 divisors (see below), whose sum is σ = 100692576. Its totient is φ = 16758720.

The previous prime is 50311213. The next prime is 50311241. The reversal of 50311218 is 81211305.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 50311194 and 50311203.

It is not an unprimeable number, because it can be changed into a prime (50311213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13530 + ... + 16842.

It is an arithmetic number, because the mean of its divisors is an integer number (6293286).

Almost surely, 2^50311218 is an apocalyptic number.

50311218 is an abundant number, since it is smaller than the sum of its proper divisors (50381358).

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

50311218 is a wasteful number, since it uses less digits than its factorization.

50311218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5849.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 50311218 is about 7093.0401098542. The cubic root of 50311218 is about 369.1659273889.

The spelling of 50311218 in words is "fifty million, three hundred eleven thousand, two hundred eighteen".