25965427 has 2 divisors, whose sum is σ = 25965428. Its totient is φ = 25965426.

The previous prime is 25965403. The next prime is 25965431. The reversal of 25965427 is 72456952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25965427 - 2⁷ = 25965299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25965427.

It is not a weakly prime, because it can be changed into another prime (25965437) 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, 12982713 + 12982714.

It is an arithmetic number, because the mean of its divisors is an integer number (12982714).

Almost surely, 2^25965427 is an apocalyptic number.

25965427 is a deficient number, since it is larger than the sum of its proper divisors (1).

25965427 is an equidigital number, since it uses as much as digits as its factorization.

25965427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 40.

The square root of 25965427 is about 5095.6282242723. The cubic root of 25965427 is about 296.1182378559.

The spelling of 25965427 in words is "twenty-five million, nine hundred sixty-five thousand, four hundred twenty-seven".