2081385025 has 6 divisors (see below), whose sum is σ = 2580917462. Its totient is φ = 1665108000.

The previous prime is 2081385011. The next prime is 2081385041. The reversal of 2081385025 is 5205831802.

It can be written as a sum of positive squares in 3 ways, for example, as 149255089 + 1932129936 = 12217^2 + 43956^2 .

It is not a de Polignac number, because 2081385025 - 2¹¹ = 2081382977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41627676 + ... + 41627725.

Almost surely, 2^2081385025 is an apocalyptic number.

2081385025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2081385025 is a deficient number, since it is larger than the sum of its proper divisors (499532437).

2081385025 is an equidigital number, since it uses as much as digits as its factorization.

2081385025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83255411 (or 83255406 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 2081385025 is about 45622.1988181192. The cubic root of 2081385025 is about 1276.7841279335.

The spelling of 2081385025 in words is "two billion, eighty-one million, three hundred eighty-five thousand, twenty-five".