25632798084 has 192 divisors, whose sum is σ = 74282745600. Its totient is φ = 7596343296.

The previous prime is 25632798083. The next prime is 25632798187. The reversal of 25632798084 is 48089723652.

25632798084 is a `hidden beast` number, since 2 + 563 + 2 + 79 + 8 + 0 + 8 + 4 = 666.

It is a super-2 number, since 2×25632798084² (a number of 22 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25632798084.

It is not an unprimeable number, because it can be changed into a prime (25632798083) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15103924 + ... + 15105620.

It is an arithmetic number, because the mean of its divisors is an integer number (386889300).

Almost surely, 2^25632798084 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 25632798084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37141372800).

25632798084 is an abundant number, since it is smaller than the sum of its proper divisors (48649947516).

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

25632798084 is a wasteful number, since it uses less digits than its factorization.

25632798084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179 (or 2171 counting only the distinct ones).

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

The spelling of 25632798084 in words is "twenty-five billion, six hundred thirty-two million, seven hundred ninety-eight thousand, eighty-four".