25771241 has 2 divisors, whose sum is σ = 25771242. Its totient is φ = 25771240.

The previous prime is 25771231. The next prime is 25771243. The reversal of 25771241 is 14217752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15241216 + 10530025 = 3904^2 + 3245^2 .

It is a cyclic number.

It is not a de Polignac number, because 25771241 - 2⁶ = 25771177 is a prime.

Together with 25771243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25771243) 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, 12885620 + 12885621.

It is an arithmetic number, because the mean of its divisors is an integer number (12885621).

Almost surely, 2^25771241 is an apocalyptic number.

It is an amenable number.

25771241 is a deficient number, since it is larger than the sum of its proper divisors (1).

25771241 is an equidigital number, since it uses as much as digits as its factorization.

25771241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3920, while the sum is 29.

The square root of 25771241 is about 5076.5382890312. The cubic root of 25771241 is about 295.3782030362.

Adding to 25771241 its reverse (14217752), we get a palindrome (39988993).

The spelling of 25771241 in words is "twenty-five million, seven hundred seventy-one thousand, two hundred forty-one".