25585841 has 2 divisors, whose sum is σ = 25585842. Its totient is φ = 25585840.

The previous prime is 25585831. The next prime is 25585849. The reversal of 25585841 is 14858552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21196816 + 4389025 = 4604^2 + 2095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25585841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25585795 and 25585804.

It is not a weakly prime, because it can be changed into another prime (25585849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12792920 + 12792921.

It is an arithmetic number, because the mean of its divisors is an integer number (12792921).

Almost surely, 2^25585841 is an apocalyptic number.

It is an amenable number.

25585841 is a deficient number, since it is larger than the sum of its proper divisors (1).

25585841 is an equidigital number, since it uses as much as digits as its factorization.

25585841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64000, while the sum is 38.

The square root of 25585841 is about 5058.2448537017. The cubic root of 25585841 is about 294.6681742437.

The spelling of 25585841 in words is "twenty-five million, five hundred eighty-five thousand, eight hundred forty-one".