2152550220 has 96 divisors (see below), whose sum is σ = 6365302272. Its totient is φ = 542412288.

The previous prime is 2152550207. The next prime is 2152550273. The reversal of 2152550220 is 220552512.

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, 105144 + ... + 123936.

It is an arithmetic number, because the mean of its divisors is an integer number (66305232).

Almost surely, 2^2152550220 is an apocalyptic number.

2152550220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2152550220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3182651136).

2152550220 is an abundant number, since it is smaller than the sum of its proper divisors (4212752052).

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

2152550220 is a wasteful number, since it uses less digits than its factorization.

2152550220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18911 (or 18909 counting only the distinct ones).

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

The square root of 2152550220 is about 46395.5840571061. The cubic root of 2152550220 is about 1291.1729851323.

The spelling of 2152550220 in words is "two billion, one hundred fifty-two million, five hundred fifty thousand, two hundred twenty".