25915325 has 6 divisors (see below), whose sum is σ = 32135034. Its totient is φ = 20732240.

The previous prime is 25915313. The next prime is 25915343. The reversal of 25915325 is 52351952.

It can be written as a sum of positive squares in 3 ways, for example, as 8916196 + 16999129 = 2986^2 + 4123^2 .

It is not a de Polignac number, because 25915325 - 2⁶ = 25915261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25915291 and 25915300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 518282 + ... + 518331.

It is an arithmetic number, because the mean of its divisors is an integer number (5355839).

Almost surely, 2^25915325 is an apocalyptic number.

25915325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25915325 is a deficient number, since it is larger than the sum of its proper divisors (6219709).

25915325 is a wasteful number, since it uses less digits than its factorization.

25915325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036623 (or 1036618 counting only the distinct ones).

The product of its digits is 13500, while the sum is 32.

The square root of 25915325 is about 5090.7096754775. The cubic root of 25915325 is about 295.9276553476.

The spelling of 25915325 in words is "twenty-five million, nine hundred fifteen thousand, three hundred twenty-five".