25880135 has 4 divisors (see below), whose sum is σ = 31056168. Its totient is φ = 20704104.

The previous prime is 25880123. The next prime is 25880159. The reversal of 25880135 is 53108852.

It is a happy number.

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 25880135 - 2¹⁴ = 25863751 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 2588009 + ... + 2588018.

It is an arithmetic number, because the mean of its divisors is an integer number (7764042).

Almost surely, 2^25880135 is an apocalyptic number.

25880135 is a deficient number, since it is larger than the sum of its proper divisors (5176033).

25880135 is an equidigital number, since it uses as much as digits as its factorization.

25880135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5176032.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 25880135 is about 5087.2522052676. The cubic root of 25880135 is about 295.7936495514.

Adding to 25880135 its reverse (53108852), we get a palindrome (78988987).

The spelling of 25880135 in words is "twenty-five million, eight hundred eighty thousand, one hundred thirty-five".