25327138936 has 64 divisors (see below), whose sum is σ = 53282396160. Its totient is φ = 11186400000.

The previous prime is 25327138913. The next prime is 25327138937. The reversal of 25327138936 is 63983172352.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25327138936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25327138937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891625 + ... + 919591.

It is an arithmetic number, because the mean of its divisors is an integer number (832537440).

Almost surely, 2^25327138936 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 25327138936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26641198080).

25327138936 is an abundant number, since it is smaller than the sum of its proper divisors (27955257224).

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

25327138936 is a wasteful number, since it uses less digits than its factorization.

25327138936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28276 (or 28272 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 49.

The spelling of 25327138936 in words is "twenty-five billion, three hundred twenty-seven million, one hundred thirty-eight thousand, nine hundred thirty-six".