2055900000 has 576 divisors, whose sum is σ = 8504455680. Its totient is φ = 422400000.

The previous prime is 2055899977. The next prime is 2055900031. The reversal of 2055900000 is 95502.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2055900000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 23099956 + ... + 23100044.

It is an arithmetic number, because the mean of its divisors is an integer number (14764680).

Almost surely, 2^2055900000 is an apocalyptic number.

2055900000 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 2055900000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4252227840).

2055900000 is an abundant number, since it is smaller than the sum of its proper divisors (6448555680).

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

2055900000 is an equidigital number, since it uses as much as digits as its factorization.

2055900000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 2055900000 is about 45342.0334788814. The cubic root of 2055900000 is about 1271.5516199797.

Adding to 2055900000 its reverse (95502), we get a palindrome (2055995502).

The spelling of 2055900000 in words is "two billion, fifty-five million, nine hundred thousand".