25948791073 has 2 divisors, whose sum is σ = 25948791074. Its totient is φ = 25948791072.

The previous prime is 25948790999. The next prime is 25948791079. The reversal of 25948791073 is 37019784952.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20011780369 + 5937010704 = 141463^2 + 77052^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25948791073 is a prime.

It is not a weakly prime, because it can be changed into another prime (25948791079) 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, 12974395536 + 12974395537.

It is an arithmetic number, because the mean of its divisors is an integer number (12974395537).

Almost surely, 2^25948791073 is an apocalyptic number.

It is an amenable number.

25948791073 is a deficient number, since it is larger than the sum of its proper divisors (1).

25948791073 is an equidigital number, since it uses as much as digits as its factorization.

25948791073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3810240, while the sum is 55.

It can be divided in two parts, 2594879 and 1073, that added together give a palindrome (2595952).

The spelling of 25948791073 in words is "twenty-five billion, nine hundred forty-eight million, seven hundred ninety-one thousand, seventy-three".