25705325 has 6 divisors (see below), whose sum is σ = 31874634. Its totient is φ = 20564240.

The previous prime is 25705313. The next prime is 25705333. The reversal of 25705325 is 52350752.

It can be written as a sum of positive squares in 3 ways, for example, as 162409 + 25542916 = 403^2 + 5054^2 .

It is not a de Polignac number, because 25705325 - 2⁶ = 25705261 is a prime.

It is a Duffinian number.

It is a Curzon number.

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 5 ways as a sum of consecutive naturals, for example, 514082 + ... + 514131.

It is an arithmetic number, because the mean of its divisors is an integer number (5312439).

Almost surely, 2^25705325 is an apocalyptic number.

25705325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25705325 is a deficient number, since it is larger than the sum of its proper divisors (6169309).

25705325 is a wasteful number, since it uses less digits than its factorization.

25705325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028223 (or 1028218 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 25705325 is about 5070.0419130417. The cubic root of 25705325 is about 295.1261549867.

The spelling of 25705325 in words is "twenty-five million, seven hundred five thousand, three hundred twenty-five".