25811112 has 16 divisors (see below), whose sum is σ = 64527840. Its totient is φ = 8603696.

The previous prime is 25811111. The next prime is 25811141. The reversal of 25811112 is 21111852.

It is not an unprimeable number, because it can be changed into a prime (25811111) 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, 537708 + ... + 537755.

It is an arithmetic number, because the mean of its divisors is an integer number (4032990).

Almost surely, 2^25811112 is an apocalyptic number.

It is an amenable number.

25811112 is an abundant number, since it is smaller than the sum of its proper divisors (38716728).

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

25811112 is a wasteful number, since it uses less digits than its factorization.

25811112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075472 (or 1075468 counting only the distinct ones).

The product of its digits is 160, while the sum is 21.

The square root of 25811112 is about 5080.4637583591. The cubic root of 25811112 is about 295.5304522830.

Adding to 25811112 its reverse (21111852), we get a palindrome (46922964).

The spelling of 25811112 in words is "twenty-five million, eight hundred eleven thousand, one hundred twelve".