25454444041 has 4 divisors (see below), whose sum is σ = 27412478212. Its totient is φ = 23496409872.

The previous prime is 25454444017. The next prime is 25454444051. The reversal of 25454444041 is 14044445452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14256360000 + 11198084041 = 119400^2 + 105821^2 .

It is not a de Polignac number, because 25454444041 - 2⁷ = 25454443913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25454444051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 979017066 + ... + 979017091.

It is an arithmetic number, because the mean of its divisors is an integer number (6853119553).

Almost surely, 2^25454444041 is an apocalyptic number.

It is an amenable number.

25454444041 is a deficient number, since it is larger than the sum of its proper divisors (1958034171).

25454444041 is a wasteful number, since it uses less digits than its factorization.

25454444041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958034170.

The product of its (nonzero) digits is 204800, while the sum is 37.

Adding to 25454444041 its reverse (14044445452), we get a palindrome (39498889493).

The spelling of 25454444041 in words is "twenty-five billion, four hundred fifty-four million, four hundred forty-four thousand, forty-one".