25988823216 has 320 divisors, whose sum is σ = 79034941440. Its totient is φ = 8165940480.

The previous prime is 25988823209. The next prime is 25988823283. The reversal of 25988823216 is 61232888952.

It is a happy number.

25988823216 is a `hidden beast` number, since 2 + 598 + 8 + 8 + 2 + 32 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 114488095 + ... + 114488321.

It is an arithmetic number, because the mean of its divisors is an integer number (246984192).

Almost surely, 2^25988823216 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 25988823216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39517470720).

25988823216 is an abundant number, since it is smaller than the sum of its proper divisors (53046118224).

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

25988823216 is a wasteful number, since it uses less digits than its factorization.

25988823216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 449 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The spelling of 25988823216 in words is "twenty-five billion, nine hundred eighty-eight million, eight hundred twenty-three thousand, two hundred sixteen".