25965525 has 12 divisors (see below), whose sum is σ = 42929792. Its totient is φ = 13848240.

The previous prime is 25965521. The next prime is 25965547. The reversal of 25965525 is 52556952.

It is not a de Polignac number, because 25965525 - 2² = 25965521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25965521) 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, 173029 + ... + 173178.

Almost surely, 2^25965525 is an apocalyptic number.

25965525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25965525 is a deficient number, since it is larger than the sum of its proper divisors (16964267).

25965525 is a wasteful number, since it uses less digits than its factorization.

25965525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346220 (or 346215 counting only the distinct ones).

The product of its digits is 135000, while the sum is 39.

The square root of 25965525 is about 5095.6378403493. The cubic root of 25965525 is about 296.1186103968.

The spelling of 25965525 in words is "twenty-five million, nine hundred sixty-five thousand, five hundred twenty-five".