2105770025 has 24 divisors (see below), whose sum is σ = 2772869400. Its totient is φ = 1580866560.

The previous prime is 2105770021. The next prime is 2105770061. The reversal of 2105770025 is 5200775012.

It can be written as a sum of positive squares in 12 ways, for example, as 12524521 + 2093245504 = 3539^2 + 45752^2 .

It is not a de Polignac number, because 2105770025 - 2² = 2105770021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2105770025.

It is not an unprimeable number, because it can be changed into a prime (2105770021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141227 + ... + 155423.

It is an arithmetic number, because the mean of its divisors is an integer number (115536225).

Almost surely, 2^2105770025 is an apocalyptic number.

2105770025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2105770025 is a deficient number, since it is larger than the sum of its proper divisors (667099375).

2105770025 is a wasteful number, since it uses less digits than its factorization.

2105770025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14573 (or 14568 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 2105770025 is about 45888.6698979171. The cubic root of 2105770025 is about 1281.7509454187.

The spelling of 2105770025 in words is "two billion, one hundred five million, seven hundred seventy thousand, twenty-five".