25595964 has 72 divisors (see below), whose sum is σ = 71111040. Its totient is φ = 7726752.

The previous prime is 25595963. The next prime is 25595993. The reversal of 25595964 is 46959552.

It is a happy number.

25595964 is a `hidden beast` number, since 2 + 5 + 59 + 596 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25595963) 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, 14919 + ... + 16545.

Almost surely, 2^25595964 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 25595964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35555520).

25595964 is an abundant number, since it is smaller than the sum of its proper divisors (45515076).

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

25595964 is a wasteful number, since it uses less digits than its factorization.

25595964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679 (or 1674 counting only the distinct ones).

The product of its digits is 486000, while the sum is 45.

The square root of 25595964 is about 5059.2453982783. The cubic root of 25595964 is about 294.7070307948.

The spelling of 25595964 in words is "twenty-five million, five hundred ninety-five thousand, nine hundred sixty-four".