25320325 has 12 divisors (see below), whose sum is σ = 31524768. Its totient is φ = 20174000.

The previous prime is 25320319. The next prime is 25320349. The reversal of 25320325 is 52302352.

It is not a de Polignac number, because 25320325 - 2¹¹ = 25318277 is a prime.

It is a super-2 number, since 2×25320325² = 1282237716211250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25320296 and 25320305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4650 + ... + 8500.

It is an arithmetic number, because the mean of its divisors is an integer number (2627064).

Almost surely, 2^25320325 is an apocalyptic number.

25320325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25320325 is a deficient number, since it is larger than the sum of its proper divisors (6204443).

25320325 is a wasteful number, since it uses less digits than its factorization.

25320325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4124 (or 4119 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 25320325 is about 5031.9305440358. The cubic root of 25320325 is about 293.6453256142.

Adding to 25320325 its reverse (52302352), we get a palindrome (77622677).

The spelling of 25320325 in words is "twenty-five million, three hundred twenty thousand, three hundred twenty-five".