50221980 has 72 divisors (see below), whose sum is σ = 154954800. Its totient is φ = 13162752.

The previous prime is 50221967. The next prime is 50221981. The reversal of 50221980 is 8912205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50221981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8256 + ... + 12984.

It is an arithmetic number, because the mean of its divisors is an integer number (2152150).

Almost surely, 2^50221980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50221980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77477400).

50221980 is an abundant number, since it is smaller than the sum of its proper divisors (104732820).

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

50221980 is a wasteful number, since it uses less digits than its factorization.

50221980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4803 (or 4798 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 50221980 is about 7086.7467853734. The cubic root of 50221980 is about 368.9475325846.

The spelling of 50221980 in words is "fifty million, two hundred twenty-one thousand, nine hundred eighty".