25328791 has 2 divisors, whose sum is σ = 25328792. Its totient is φ = 25328790.

The previous prime is 25328789. The next prime is 25328801. The reversal of 25328791 is 19782352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25328791 - 2¹ = 25328789 is a prime.

Together with 25328789, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 25328791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25328711) 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 as a sum of consecutive naturals, namely, 12664395 + 12664396.

It is an arithmetic number, because the mean of its divisors is an integer number (12664396).

Almost surely, 2^25328791 is an apocalyptic number.

25328791 is a deficient number, since it is larger than the sum of its proper divisors (1).

25328791 is an equidigital number, since it uses as much as digits as its factorization.

25328791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 37.

The square root of 25328791 is about 5032.7717015577. The cubic root of 25328791 is about 293.6780493162.

The spelling of 25328791 in words is "twenty-five million, three hundred twenty-eight thousand, seven hundred ninety-one".