2055521872 has 20 divisors (see below), whose sum is σ = 4007945236. Its totient is φ = 1021213440.

The previous prime is 2055521861. The next prime is 2055521873. The reversal of 2055521872 is 2781255502.

It can be written as a sum of positive squares in 2 ways, for example, as 1399957056 + 655564816 = 37416^2 + 25604^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055521873) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 406629 + ... + 411652.

Almost surely, 2^2055521872 is an apocalyptic number.

It is an amenable number.

2055521872 is a deficient number, since it is larger than the sum of its proper divisors (1952423364).

2055521872 is a wasteful number, since it uses less digits than its factorization.

2055521872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818446 (or 818440 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 37.

The square root of 2055521872 is about 45337.8635579578. The cubic root of 2055521872 is about 1271.4736591919.

The spelling of 2055521872 in words is "two billion, fifty-five million, five hundred twenty-one thousand, eight hundred seventy-two".