25810325 has 12 divisors (see below), whose sum is σ = 32077188. Its totient is φ = 20601600.

The previous prime is 25810313. The next prime is 25810331. The reversal of 25810325 is 52301852.

It can be written as a sum of positive squares in 6 ways, for example, as 5080516 + 20729809 = 2254^2 + 4553^2 .

It is not a de Polignac number, because 25810325 - 2¹⁴ = 25793941 is a prime.

It is an alternating number because its digits alternate between even and odd.

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 = 25810294 and 25810303.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13955 + ... + 15695.

It is an arithmetic number, because the mean of its divisors is an integer number (2673099).

Almost surely, 2^25810325 is an apocalyptic number.

25810325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25810325 is a deficient number, since it is larger than the sum of its proper divisors (6266863).

25810325 is a wasteful number, since it uses less digits than its factorization.

25810325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344 (or 2339 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 25810325 is about 5080.3863042096. The cubic root of 25810325 is about 295.5274486047.

The spelling of 25810325 in words is "twenty-five million, eight hundred ten thousand, three hundred twenty-five".