25604132364 has 72 divisors (see below), whose sum is σ = 67029318720. Its totient is φ = 8231059200.

The previous prime is 25604132363. The next prime is 25604132371. The reversal of 25604132364 is 46323140652.

25604132364 is a `hidden beast` number, since 2 + 5 + 6 + 0 + 413 + 236 + 4 = 666.

It is a super-2 number, since 2×25604132364² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (25604132363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 937624 + ... + 964544.

It is an arithmetic number, because the mean of its divisors is an integer number (930962760).

Almost surely, 2^25604132364 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 25604132364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33514659360).

25604132364 is an abundant number, since it is smaller than the sum of its proper divisors (41425186356).

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

25604132364 is a wasteful number, since it uses less digits than its factorization.

25604132364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27871 (or 27866 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 25604132364 in words is "twenty-five billion, six hundred four million, one hundred thirty-two thousand, three hundred sixty-four".