25544240041 has 2 divisors, whose sum is σ = 25544240042. Its totient is φ = 25544240040.

The previous prime is 25544240023. The next prime is 25544240087. The reversal of 25544240041 is 14004244552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19038204441 + 6506035600 = 137979^2 + 80660^2 .

It is a cyclic number.

It is not a de Polignac number, because 25544240041 - 2⁵ = 25544240009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25544239985 and 25544240012.

It is not a weakly prime, because it can be changed into another prime (25544240011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12772120020 + 12772120021.

It is an arithmetic number, because the mean of its divisors is an integer number (12772120021).

Almost surely, 2^25544240041 is an apocalyptic number.

It is an amenable number.

25544240041 is a deficient number, since it is larger than the sum of its proper divisors (1).

25544240041 is an equidigital number, since it uses as much as digits as its factorization.

25544240041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 25544240041 its reverse (14004244552), we get a palindrome (39548484593).

The spelling of 25544240041 in words is "twenty-five billion, five hundred forty-four million, two hundred forty thousand, forty-one".