25394632704 has 480 divisors, whose sum is σ = 91329638400. Its totient is φ = 6867763200.

The previous prime is 25394632687. The next prime is 25394632717. The reversal of 25394632704 is 40723649352.

25394632704 is a `hidden beast` number, since 2 + 5 + 3 + 9 + 4 + 632 + 7 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 25394632704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 22062529 + ... + 22063679.

It is an arithmetic number, because the mean of its divisors is an integer number (190270080).

Almost surely, 2^25394632704 is an apocalyptic number.

25394632704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25394632704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45664819200).

25394632704 is an abundant number, since it is smaller than the sum of its proper divisors (65935005696).

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

25394632704 is a wasteful number, since it uses less digits than its factorization.

25394632704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211 (or 1182 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 25394632704 in words is "twenty-five billion, three hundred ninety-four million, six hundred thirty-two thousand, seven hundred four".