25881792 has 56 divisors (see below), whose sum is σ = 68982336. Its totient is φ = 8563968.

The previous prime is 25881787. The next prime is 25881811. The reversal of 25881792 is 29718852.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 30883 + ... + 31709.

Almost surely, 2^25881792 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 25881792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34491168).

25881792 is an abundant number, since it is smaller than the sum of its proper divisors (43100544).

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

25881792 is a wasteful number, since it uses less digits than its factorization.

25881792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005 (or 995 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 25881792 is about 5087.4150607160. The cubic root of 25881792 is about 295.7999622390.

The spelling of 25881792 in words is "twenty-five million, eight hundred eighty-one thousand, seven hundred ninety-two".