25605325 has 12 divisors (see below), whose sum is σ = 33131808. Its totient is φ = 19593200.

The previous prime is 25605319. The next prime is 25605337. The reversal of 25605325 is 52350652.

It is not a de Polignac number, because 25605325 - 2¹⁹ = 25081037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25605293 and 25605302.

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 11 ways as a sum of consecutive naturals, for example, 21691 + ... + 22840.

It is an arithmetic number, because the mean of its divisors is an integer number (2760984).

Almost surely, 2^25605325 is an apocalyptic number.

25605325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25605325 is a deficient number, since it is larger than the sum of its proper divisors (7526483).

25605325 is a wasteful number, since it uses less digits than its factorization.

25605325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44564 (or 44559 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 25605325 is about 5060.1704516745. The cubic root of 25605325 is about 294.7429533367.

Adding to 25605325 its reverse (52350652), we get a palindrome (77955977).

The spelling of 25605325 in words is "twenty-five million, six hundred five thousand, three hundred twenty-five".