25804580453 has 2 divisors, whose sum is σ = 25804580454. Its totient is φ = 25804580452.

The previous prime is 25804580423. The next prime is 25804580467. The reversal of 25804580453 is 35408540852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22481403844 + 3323176609 = 149938^2 + 57647^2 .

It is a cyclic number.

It is not a de Polignac number, because 25804580453 - 2²² = 25800386149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25804580413) 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, 12902290226 + 12902290227.

It is an arithmetic number, because the mean of its divisors is an integer number (12902290227).

Almost surely, 2^25804580453 is an apocalyptic number.

It is an amenable number.

25804580453 is a deficient number, since it is larger than the sum of its proper divisors (1).

25804580453 is an equidigital number, since it uses as much as digits as its factorization.

25804580453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768000, while the sum is 44.

The spelling of 25804580453 in words is "twenty-five billion, eight hundred four million, five hundred eighty thousand, four hundred fifty-three".