25825535 has 4 divisors (see below), whose sum is σ = 30990648. Its totient is φ = 20660424.

The previous prime is 25825517. The next prime is 25825537. The reversal of 25825535 is 53552852.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25825535 - 2⁸ = 25825279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25825495 and 25825504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25825537) 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 3 ways as a sum of consecutive naturals, for example, 2582549 + ... + 2582558.

It is an arithmetic number, because the mean of its divisors is an integer number (7747662).

Almost surely, 2^25825535 is an apocalyptic number.

25825535 is a deficient number, since it is larger than the sum of its proper divisors (5165113).

25825535 is an equidigital number, since it uses as much as digits as its factorization.

25825535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5165112.

The product of its digits is 60000, while the sum is 35.

The square root of 25825535 is about 5081.8830171502. The cubic root of 25825535 is about 295.5854885534.

The spelling of 25825535 in words is "twenty-five million, eight hundred twenty-five thousand, five hundred thirty-five".