25448825359989 has 8 divisors (see below), whose sum is σ = 37701963496320. Its totient is φ = 16965883573308.

The previous prime is 25448825359987. The next prime is 25448825360089. The reversal of 25448825359989 is 98995352884452.

25448825359989 is a `hidden beast` number, since 2 + 5 + 4 + 488 + 2 + 5 + 3 + 59 + 9 + 89 = 666.

It is not a de Polignac number, because 25448825359989 - 2¹ = 25448825359987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25448825359987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471274543677 + ... + 471274543730.

It is an arithmetic number, because the mean of its divisors is an integer number (4712745437040).

Almost surely, 2^{25448825359989} is an apocalyptic number.

It is an amenable number.

25448825359989 is a deficient number, since it is larger than the sum of its proper divisors (12253138136331).

25448825359989 is an equidigital number, since it uses as much as digits as its factorization.

25448825359989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942549087416 (or 942549087410 counting only the distinct ones).

The product of its digits is 8957952000, while the sum is 81.

The spelling of 25448825359989 in words is "twenty-five trillion, four hundred forty-eight billion, eight hundred twenty-five million, three hundred fifty-nine thousand, nine hundred eighty-nine".