25448648785 has 8 divisors (see below), whose sum is σ = 34901004096. Its totient is φ = 17450502000.

The previous prime is 25448648779. The next prime is 25448648833. The reversal of 25448648785 is 58784684452.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25448648785 - 2⁹ = 25448648273 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363552091 + ... + 363552160.

It is an arithmetic number, because the mean of its divisors is an integer number (4362625512).

Almost surely, 2^25448648785 is an apocalyptic number.

It is an amenable number.

25448648785 is a deficient number, since it is larger than the sum of its proper divisors (9452355311).

25448648785 is an equidigital number, since it uses as much as digits as its factorization.

25448648785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727104263.

The product of its digits is 68812800, while the sum is 61.

The spelling of 25448648785 in words is "twenty-five billion, four hundred forty-eight million, six hundred forty-eight thousand, seven hundred eighty-five".