25598387925 has 432 divisors, whose sum is σ = 58350015360. Its totient is φ = 10644480000.

The previous prime is 25598387873. The next prime is 25598387929. The reversal of 25598387925 is 52978389552.

25598387925 is a `hidden beast` number, since 2 + 5 + 598 + 38 + 7 + 9 + 2 + 5 = 666.

It is not a de Polignac number, because 25598387925 - 2¹⁰ = 25598386901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25598387929) by changing a digit.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 360540640 + ... + 360540710.

It is an arithmetic number, because the mean of its divisors is an integer number (135069480).

Almost surely, 2^25598387925 is an apocalyptic number.

25598387925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25598387925 is an abundant number, since it is smaller than the sum of its proper divisors (32751627435).

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

25598387925 is a wasteful number, since it uses less digits than its factorization.

25598387925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 167 counting only the distinct ones).

The product of its digits is 54432000, while the sum is 63.

The spelling of 25598387925 in words is "twenty-five billion, five hundred ninety-eight million, three hundred eighty-seven thousand, nine hundred twenty-five".