2055540000 has 120 divisors (see below), whose sum is σ = 6742779120. Its totient is φ = 548128000.

The previous prime is 2055539939. The next prime is 2055540007. The reversal of 2055540000 is 455502.

It is a tau number, because it is divible by the number of its divisors (120).

It is not an unprimeable number, because it can be changed into a prime (2055540007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 42871 + ... + 77129.

It is an arithmetic number, because the mean of its divisors is an integer number (56189826).

Almost surely, 2^2055540000 is an apocalyptic number.

2055540000 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 2055540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3371389560).

2055540000 is an abundant number, since it is smaller than the sum of its proper divisors (4687239120).

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

2055540000 is an equidigital number, since it uses as much as digits as its factorization.

2055540000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34292 (or 34269 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 2055540000 is about 45338.0634787151. The cubic root of 2055540000 is about 1271.4773969623.

Adding to 2055540000 its reverse (455502), we get a palindrome (2055995502).

The spelling of 2055540000 in words is "two billion, fifty-five million, five hundred forty thousand".