2251330650 has 144 divisors (see below), whose sum is σ = 6215227200. Its totient is φ = 584052480.

The previous prime is 2251330649. The next prime is 2251330663. The reversal of 2251330650 is 560331522.

2251330650 is a `hidden beast` number, since 2 + 2 + 5 + 1 + 3 + 3 + 0 + 650 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2682931 + ... + 2683769.

It is an arithmetic number, because the mean of its divisors is an integer number (43161300).

Almost surely, 2^2251330650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2251330650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3107613600).

2251330650 is an abundant number, since it is smaller than the sum of its proper divisors (3963896550).

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

2251330650 is a wasteful number, since it uses less digits than its factorization.

2251330650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 1005 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 2251330650 is about 47448.1891119145. The cubic root of 2251330650 is about 1310.6289639416.

The spelling of 2251330650 in words is "two billion, two hundred fifty-one million, three hundred thirty thousand, six hundred fifty".