2099402550 has 360 divisors, whose sum is σ = 6927346800. Its totient is φ = 469929600.

The previous prime is 2099402537. The next prime is 2099402561. The reversal of 2099402550 is 552049902.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 14089876 + ... + 14090024.

It is an arithmetic number, because the mean of its divisors is an integer number (19242630).

Almost surely, 2^2099402550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2099402550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3463673400).

2099402550 is an abundant number, since it is smaller than the sum of its proper divisors (4827944250).

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

2099402550 is a wasteful number, since it uses less digits than its factorization.

2099402550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 2099402550 is about 45819.2377719228. The cubic root of 2099402550 is about 1280.4577118781.

The spelling of 2099402550 in words is "two billion, ninety-nine million, four hundred two thousand, five hundred fifty".