2655561500 has 96 divisors (see below), whose sum is σ = 6184563840. Its totient is φ = 992640000.

The previous prime is 2655561499. The next prime is 2655561541. The reversal of 2655561500 is 51655562.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1282466 + ... + 1284534.

It is an arithmetic number, because the mean of its divisors is an integer number (64422540).

Almost surely, 2^2655561500 is an apocalyptic number.

2655561500 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 2655561500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3092281920).

2655561500 is an abundant number, since it is smaller than the sum of its proper divisors (3529002340).

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

2655561500 is a wasteful number, since it uses less digits than its factorization.

2655561500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256 (or 2244 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

The square root of 2655561500 is about 51532.1404562240. The cubic root of 2655561500 is about 1384.7948972304.

The spelling of 2655561500 in words is "two billion, six hundred fifty-five million, five hundred sixty-one thousand, five hundred".