2081825 has 6 divisors (see below), whose sum is σ = 2581494. Its totient is φ = 1665440.

The previous prime is 2081813. The next prime is 2081831. The reversal of 2081825 is 5281802.

It can be written as a sum of positive squares in 3 ways, for example, as 141376 + 1940449 = 376^2 + 1393^2 .

It is not a de Polignac number, because 2081825 - 2⁴ = 2081809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2081794 and 2081803.

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, 41612 + ... + 41661.

It is an arithmetic number, because the mean of its divisors is an integer number (430249).

2^2081825 is an apocalyptic number.

2081825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2081825 is a deficient number, since it is larger than the sum of its proper divisors (499669).

2081825 is an equidigital number, since it uses as much as digits as its factorization.

2081825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83283 (or 83278 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 2081825 is about 1442.8530763733. The cubic root of 2081825 is about 127.6874086224.

The spelling of 2081825 in words is "two million, eighty-one thousand, eight hundred twenty-five".