25308325 has 48 divisors (see below), whose sum is σ = 38997504. Its totient is φ = 15897600.

The previous prime is 25308317. The next prime is 25308331. The reversal of 25308325 is 52380352.

It is not a de Polignac number, because 25308325 - 2³ = 25308317 is a prime.

It is a super-2 number, since 2×25308325² = 1281022628611250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25308293 and 25308302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 139735 + ... + 139915.

It is an arithmetic number, because the mean of its divisors is an integer number (812448).

Almost surely, 2^25308325 is an apocalyptic number.

25308325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25308325 is a deficient number, since it is larger than the sum of its proper divisors (13689179).

25308325 is a wasteful number, since it uses less digits than its factorization.

25308325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 25308325 is about 5030.7380174285. The cubic root of 25308325 is about 293.5989294125.

Adding to 25308325 its reverse (52380352), we get a palindrome (77688677).

The spelling of 25308325 in words is "twenty-five million, three hundred eight thousand, three hundred twenty-five".