25558288975789 has 2 divisors, whose sum is σ = 25558288975790. Its totient is φ = 25558288975788.

The previous prime is 25558288975763. The next prime is 25558288975799. The reversal of 25558288975789 is 98757988285552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16325502873289 + 9232786102500 = 4040483^2 + 3038550^2 .

It is a cyclic number.

It is not a de Polignac number, because 25558288975789 - 2¹¹ = 25558288973741 is a prime.

It is a super-2 number, since 2×25558288975789² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25558288975799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12779144487894 + 12779144487895.

It is an arithmetic number, because the mean of its divisors is an integer number (12779144487895).

Almost surely, 2^{25558288975789} is an apocalyptic number.

It is an amenable number.

25558288975789 is a deficient number, since it is larger than the sum of its proper divisors (1).

25558288975789 is an equidigital number, since it uses as much as digits as its factorization.

25558288975789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40642560000, while the sum is 88.

The spelling of 25558288975789 in words is "twenty-five trillion, five hundred fifty-eight billion, two hundred eighty-eight million, nine hundred seventy-five thousand, seven hundred eighty-nine".