25802063489 has 2 divisors, whose sum is σ = 25802063490. Its totient is φ = 25802063488.

The previous prime is 25802063459. The next prime is 25802063501. The reversal of 25802063489 is 98436020852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15795462400 + 10006601089 = 125680^2 + 100033^2 .

It is a cyclic number.

It is not a de Polignac number, because 25802063489 - 2²⁰ = 25801014913 is a prime.

It is not a weakly prime, because it can be changed into another prime (25802063459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12901031744 + 12901031745.

It is an arithmetic number, because the mean of its divisors is an integer number (12901031745).

Almost surely, 2^25802063489 is an apocalyptic number.

It is an amenable number.

25802063489 is a deficient number, since it is larger than the sum of its proper divisors (1).

25802063489 is an equidigital number, since it uses as much as digits as its factorization.

25802063489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 25802063489 in words is "twenty-five billion, eight hundred two million, sixty-three thousand, four hundred eighty-nine".