2106530250 has 256 divisors, whose sum is σ = 6036885504. Its totient is φ = 484704000.

The previous prime is 2106530249. The next prime is 2106530273. The reversal of 2106530250 is 520356012.

It is a self number, because there is not a number n which added to its sum of digits gives 2106530250.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 20451699 + ... + 20451801.

It is an arithmetic number, because the mean of its divisors is an integer number (23581584).

Almost surely, 2^2106530250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2106530250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3018442752).

2106530250 is an abundant number, since it is smaller than the sum of its proper divisors (3930355254).

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

2106530250 is a wasteful number, since it uses less digits than its factorization.

2106530250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2106530250 is about 45896.9525132116. The cubic root of 2106530250 is about 1281.9051727501.

Adding to 2106530250 its reverse (520356012), we get a palindrome (2626886262).

It can be divided in two parts, 21065 and 30250, that added together give a palindrome (51315).

The spelling of 2106530250 in words is "two billion, one hundred six million, five hundred thirty thousand, two hundred fifty".