25666935448 has 64 divisors (see below), whose sum is σ = 60551251200. Its totient is φ = 9908334720.

The previous prime is 25666935433. The next prime is 25666935449. The reversal of 25666935448 is 84453966652.

It is a junction number, because it is equal to n+sod(n) for n = 25666935392 and 25666935401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25666935449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123990 + ... + 258277.

It is an arithmetic number, because the mean of its divisors is an integer number (946113300).

Almost surely, 2^25666935448 is an apocalyptic number.

25666935448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25666935448 is an abundant number, since it is smaller than the sum of its proper divisors (34884315752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25666935448 is a wasteful number, since it uses less digits than its factorization.

25666935448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382400 (or 382396 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 58.

The spelling of 25666935448 in words is "twenty-five billion, six hundred sixty-six million, nine hundred thirty-five thousand, four hundred forty-eight".