25440341 has 2 divisors, whose sum is σ = 25440342. Its totient is φ = 25440340.

The previous prime is 25440319. The next prime is 25440343. The reversal of 25440341 is 14304452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20666116 + 4774225 = 4546^2 + 2185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25440341 is a prime.

Together with 25440343, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25440343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12720170 + 12720171.

It is an arithmetic number, because the mean of its divisors is an integer number (12720171).

Almost surely, 2^25440341 is an apocalyptic number.

It is an amenable number.

25440341 is a deficient number, since it is larger than the sum of its proper divisors (1).

25440341 is an equidigital number, since it uses as much as digits as its factorization.

25440341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 25440341 is about 5043.8418888780. The cubic root of 25440341 is about 294.1085450775.

Adding to 25440341 its reverse (14304452), we get a palindrome (39744793).

The spelling of 25440341 in words is "twenty-five million, four hundred forty thousand, three hundred forty-one".