25396009398 has 48 divisors (see below), whose sum is σ = 57425958720. Its totient is φ = 8101078272.

The previous prime is 25396009393. The next prime is 25396009447. The reversal of 25396009398 is 89390069352.

25396009398 is a `hidden beast` number, since 25 + 3 + 9 + 600 + 9 + 3 + 9 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25396009391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156286 + ... + 274257.

It is an arithmetic number, because the mean of its divisors is an integer number (1196374140).

Almost surely, 2^25396009398 is an apocalyptic number.

25396009398 is an abundant number, since it is smaller than the sum of its proper divisors (32029949322).

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

25396009398 is a wasteful number, since it uses less digits than its factorization.

25396009398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430693 (or 430690 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

The spelling of 25396009398 in words is "twenty-five billion, three hundred ninety-six million, nine thousand, three hundred ninety-eight".