2550221980 has 24 divisors (see below), whose sum is σ = 5359273920. Its totient is φ = 1019363520.

The previous prime is 2550221977. The next prime is 2550222007. The reversal of 2550221980 is 891220552.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16036 + ... + 73195.

It is an arithmetic number, because the mean of its divisors is an integer number (223303080).

Almost surely, 2^2550221980 is an apocalyptic number.

2550221980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2550221980 is an abundant number, since it is smaller than the sum of its proper divisors (2809051940).

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

2550221980 is a wasteful number, since it uses less digits than its factorization.

2550221980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90669 (or 90667 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 2550221980 is about 50499.7225734954. The cubic root of 2550221980 is about 1366.2368498324.

The spelling of 2550221980 in words is "two billion, five hundred fifty million, two hundred twenty-one thousand, nine hundred eighty".