2100185025 has 48 divisors (see below), whose sum is σ = 3568604928. Its totient is φ = 1089216000.

The previous prime is 2100184997. The next prime is 2100185027. The reversal of 2100185025 is 5205810012.

It is not a de Polignac number, because 2100185025 - 2⁸ = 2100184769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2100184986 and 2100185004.

It is not an unprimeable number, because it can be changed into a prime (2100185027) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1127595 + ... + 1129455.

It is an arithmetic number, because the mean of its divisors is an integer number (74345936).

Almost surely, 2^2100185025 is an apocalyptic number.

2100185025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2100185025 is a deficient number, since it is larger than the sum of its proper divisors (1468419903).

2100185025 is a wasteful number, since it uses less digits than its factorization.

2100185025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282 (or 2277 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 2100185025 is about 45827.7756933500. The cubic root of 2100185025 is about 1280.6167732735.

Adding to 2100185025 its reverse (5205810012), we get a palindrome (7305995037).

The spelling of 2100185025 in words is "two billion, one hundred million, one hundred eighty-five thousand, twenty-five".