25993992 has 16 divisors (see below), whose sum is σ = 64985040. Its totient is φ = 8664656.

The previous prime is 25993967. The next prime is 25994011. The reversal of 25993992 is 29939952.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541518 + ... + 541565.

It is an arithmetic number, because the mean of its divisors is an integer number (4061565).

Almost surely, 2^25993992 is an apocalyptic number.

It is an amenable number.

25993992 is an abundant number, since it is smaller than the sum of its proper divisors (38991048).

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

25993992 is a wasteful number, since it uses less digits than its factorization.

25993992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083092 (or 1083088 counting only the distinct ones).

The product of its digits is 393660, while the sum is 48.

The square root of 25993992 is about 5098.4303466851. The cubic root of 25993992 is about 296.2267862670.

The spelling of 25993992 in words is "twenty-five million, nine hundred ninety-three thousand, nine hundred ninety-two".