25042001441 has 2 divisors, whose sum is σ = 25042001442. Its totient is φ = 25042001440.

The previous prime is 25042001437. The next prime is 25042001459. The reversal of 25042001441 is 14410024052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23864070400 + 1177931041 = 154480^2 + 34321^2 .

It is a cyclic number.

It is not a de Polignac number, because 25042001441 - 2² = 25042001437 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (25042001431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12521000720 + 12521000721.

It is an arithmetic number, because the mean of its divisors is an integer number (12521000721).

Almost surely, 2^25042001441 is an apocalyptic number.

It is an amenable number.

25042001441 is a deficient number, since it is larger than the sum of its proper divisors (1).

25042001441 is an equidigital number, since it uses as much as digits as its factorization.

25042001441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 25042001441 its reverse (14410024052), we get a palindrome (39452025493).

The spelling of 25042001441 in words is "twenty-five billion, forty-two million, one thousand, four hundred forty-one".