25887992 has 32 divisors (see below), whose sum is σ = 52550400. Its totient is φ = 11885184.

The previous prime is 25887989. The next prime is 25887997. The reversal of 25887992 is 29978852.

It is a self number, because there is not a number n which added to its sum of digits gives 25887992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25887997) 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 7 ways as a sum of consecutive naturals, for example, 23273 + ... + 24359.

It is an arithmetic number, because the mean of its divisors is an integer number (1642200).

Almost surely, 2^25887992 is an apocalyptic number.

It is an amenable number.

25887992 is an abundant number, since it is smaller than the sum of its proper divisors (26662408).

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

25887992 is a wasteful number, since it uses less digits than its factorization.

25887992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1331 counting only the distinct ones).

The product of its digits is 725760, while the sum is 50.

The square root of 25887992 is about 5088.0243710108. The cubic root of 25887992 is about 295.8235800439.

The spelling of 25887992 in words is "twenty-five million, eight hundred eighty-seven thousand, nine hundred ninety-two".