25466404291 has 2 divisors, whose sum is σ = 25466404292. Its totient is φ = 25466404290.

The previous prime is 25466404261. The next prime is 25466404343. The reversal of 25466404291 is 19240466452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25466404291 - 2¹¹ = 25466402243 is a prime.

It is not a weakly prime, because it can be changed into another prime (25466404261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12733202145 + 12733202146.

It is an arithmetic number, because the mean of its divisors is an integer number (12733202146).

Almost surely, 2^25466404291 is an apocalyptic number.

25466404291 is a deficient number, since it is larger than the sum of its proper divisors (1).

25466404291 is an equidigital number, since it uses as much as digits as its factorization.

25466404291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 25466404291 in words is "twenty-five billion, four hundred sixty-six million, four hundred four thousand, two hundred ninety-one".