25805964 has 24 divisors (see below), whose sum is σ = 60305728. Its totient is φ = 8588880.

The previous prime is 25805963. The next prime is 25805987. The reversal of 25805964 is 46950852.

It is not an unprimeable number, because it can be changed into a prime (25805963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9699 + ... + 12069.

Almost surely, 2^25805964 is an apocalyptic number.

It is an amenable number.

25805964 is an abundant number, since it is smaller than the sum of its proper divisors (34499764).

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

25805964 is a wasteful number, since it uses less digits than its factorization.

25805964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3285 (or 3283 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 25805964 is about 5079.9570864329. The cubic root of 25805964 is about 295.5108032273.

The spelling of 25805964 in words is "twenty-five million, eight hundred five thousand, nine hundred sixty-four".