2105530650 has 36 divisors (see below), whose sum is σ = 5656860222. Its totient is φ = 561474720.

The previous prime is 2105530649. The next prime is 2105530663. The reversal of 2105530650 is 560355012.

2105530650 is a `hidden beast` number, since 2 + 1 + 0 + 5 + 5 + 3 + 0 + 650 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1018311921 + 1087218729 = 31911^2 + 32973^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2339029 + ... + 2339928.

Almost surely, 2^2105530650 is an apocalyptic number.

2105530650 is an abundant number, since it is smaller than the sum of its proper divisors (3551329572).

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

2105530650 is a wasteful number, since it uses less digits than its factorization.

2105530650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4678975 (or 4678967 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 2105530650 is about 45886.0616091641. The cubic root of 2105530650 is about 1281.7023755756.

Adding to 2105530650 its reverse (560355012), we get a palindrome (2665885662).

The spelling of 2105530650 in words is "two billion, one hundred five million, five hundred thirty thousand, six hundred fifty".