2105320225 has 12 divisors (see below), whose sum is σ = 2626618096. Its totient is φ = 1673920080.

The previous prime is 2105320183. The next prime is 2105320241. The reversal of 2105320225 is 5220235012.

It is not a de Polignac number, because 2105320225 - 2¹¹ = 2105318177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2105320196 and 2105320205.

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 11 ways as a sum of consecutive naturals, for example, 254247 + ... + 262396.

Almost surely, 2^2105320225 is an apocalyptic number.

2105320225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2105320225 is a deficient number, since it is larger than the sum of its proper divisors (521297871).

2105320225 is a wasteful number, since it uses less digits than its factorization.

2105320225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516816 (or 516811 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 2105320225 is about 45883.7686442602. The cubic root of 2105320225 is about 1281.6596767263.

Adding to 2105320225 its reverse (5220235012), we get a palindrome (7325555237).

The spelling of 2105320225 in words is "two billion, one hundred five million, three hundred twenty thousand, two hundred twenty-five".