2055021500 has 48 divisors (see below), whose sum is σ = 5129342400. Its totient is φ = 704577600.

The previous prime is 2055021469. The next prime is 2055021511. The reversal of 2055021500 is 51205502.

It is a super-2 number, since 2×2055021500² = 8446226730924500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290075 + ... + 297074.

It is an arithmetic number, because the mean of its divisors is an integer number (106861300).

Almost surely, 2^2055021500 is an apocalyptic number.

2055021500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2055021500 is an abundant number, since it is smaller than the sum of its proper divisors (3074320900).

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

2055021500 is a wasteful number, since it uses less digits than its factorization.

2055021500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587175 (or 587163 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 2055021500 is about 45332.3449647159. The cubic root of 2055021500 is about 1271.3704799689.

The spelling of 2055021500 in words is "two billion, fifty-five million, twenty-one thousand, five hundred".