25195992 has 16 divisors (see below), whose sum is σ = 62990040. Its totient is φ = 8398656.

The previous prime is 25195991. The next prime is 25196021. The reversal of 25195992 is 29959152.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25195991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524893 + ... + 524940.

Almost surely, 2^25195992 is an apocalyptic number.

It is an amenable number.

25195992 is an abundant number, since it is smaller than the sum of its proper divisors (37794048).

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

25195992 is a wasteful number, since it uses less digits than its factorization.

25195992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049842 (or 1049838 counting only the distinct ones).

The product of its digits is 72900, while the sum is 42.

The square root of 25195992 is about 5019.5609369745. The cubic root of 25195992 is about 293.1638977875.

The spelling of 25195992 in words is "twenty-five million, one hundred ninety-five thousand, nine hundred ninety-two".