25397206848 has 336 divisors, whose sum is σ = 83696348736. Its totient is φ = 7293911040.

The previous prime is 25397206819. The next prime is 25397206907. The reversal of 25397206848 is 84860279352.

25397206848 is a `hidden beast` number, since 2 + 5 + 397 + 206 + 8 + 48 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25397206794 and 25397206803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16675015 + ... + 16676537.

It is an arithmetic number, because the mean of its divisors is an integer number (249096276).

Almost surely, 2^25397206848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25397206848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41848174368).

25397206848 is an abundant number, since it is smaller than the sum of its proper divisors (58299141888).

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

25397206848 is a wasteful number, since it uses less digits than its factorization.

25397206848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702 (or 1689 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 25397206848 in words is "twenty-five billion, three hundred ninety-seven million, two hundred six thousand, eight hundred forty-eight".