2550521220 has 96 divisors (see below), whose sum is σ = 8143244928. Its totient is φ = 590886912.

The previous prime is 2550521209. The next prime is 2550521251. The reversal of 2550521220 is 221250552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82914 + ... + 109433.

It is an arithmetic number, because the mean of its divisors is an integer number (84825468).

Almost surely, 2^2550521220 is an apocalyptic number.

2550521220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2550521220 is an abundant number, since it is smaller than the sum of its proper divisors (5592723708).

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

2550521220 is a wasteful number, since it uses less digits than its factorization.

2550521220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192389 (or 192387 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 2550521220 is about 50502.6852751416. The cubic root of 2550521220 is about 1366.2902852756.

Adding to 2550521220 its reverse (221250552), we get a palindrome (2771771772).

The spelling of 2550521220 in words is "two billion, five hundred fifty million, five hundred twenty-one thousand, two hundred twenty".