25512112 has 20 divisors (see below), whose sum is σ = 51135120. Its totient is φ = 12315968.

The previous prime is 25512107. The next prime is 25512139. The reversal of 25512112 is 21121552.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 25512112.

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, 27028 + ... + 27955.

It is an arithmetic number, because the mean of its divisors is an integer number (2556756).

Almost surely, 2^25512112 is an apocalyptic number.

It is an amenable number.

25512112 is an abundant number, since it is smaller than the sum of its proper divisors (25623008).

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

25512112 is a wasteful number, since it uses less digits than its factorization.

25512112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55020 (or 55014 counting only the distinct ones).

The product of its digits is 200, while the sum is 19.

The square root of 25512112 is about 5050.9515935119. The cubic root of 25512112 is about 294.3848601028.

Adding to 25512112 its reverse (21121552), we get a palindrome (46633664).

The spelling of 25512112 in words is "twenty-five million, five hundred twelve thousand, one hundred twelve".