2105772025 has 12 divisors (see below), whose sum is σ = 2984180032. Its totient is φ = 1443957840.

The previous prime is 2105771959. The next prime is 2105772029. The reversal of 2105772025 is 5202775012.

It is not a de Polignac number, because 2105772025 - 2⁷ = 2105771897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2105772029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6016317 + ... + 6016666.

Almost surely, 2^2105772025 is an apocalyptic number.

2105772025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2105772025 is a deficient number, since it is larger than the sum of its proper divisors (878408007).

2105772025 is a wasteful number, since it uses less digits than its factorization.

2105772025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12033000 (or 12032995 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 2105772025 is about 45888.6916897834. The cubic root of 2105772025 is about 1281.7513512087.

The spelling of 2105772025 in words is "two billion, one hundred five million, seven hundred seventy-two thousand, twenty-five".