25508325 has 12 divisors (see below), whose sum is σ = 42173888. Its totient is φ = 13604400.

The previous prime is 25508321. The next prime is 25508333. The reversal of 25508325 is 52380552.

It is not a de Polignac number, because 25508325 - 2² = 25508321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25508292 and 25508301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25508321) by changing a digit.

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, 169981 + ... + 170130.

Almost surely, 2^25508325 is an apocalyptic number.

25508325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25508325 is a deficient number, since it is larger than the sum of its proper divisors (16665563).

25508325 is a wasteful number, since it uses less digits than its factorization.

25508325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340124 (or 340119 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 25508325 is about 5050.5766997443. The cubic root of 25508325 is about 294.3702932880.

Adding to 25508325 its reverse (52380552), we get a palindrome (77888877).

The spelling of 25508325 in words is "twenty-five million, five hundred eight thousand, three hundred twenty-five".