27750112 has 48 divisors (see below), whose sum is σ = 60307632. Its totient is φ = 12487680.

The previous prime is 27750109. The next prime is 27750113. The reversal of 27750112 is 21105772.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27750113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16243 + ... + 17869.

It is an arithmetic number, because the mean of its divisors is an integer number (1256409).

Almost surely, 2^27750112 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 27750112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30153816).

27750112 is an abundant number, since it is smaller than the sum of its proper divisors (32557520).

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

27750112 is a wasteful number, since it uses less digits than its factorization.

27750112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691 (or 1683 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 27750112 is about 5267.8375069852. The cubic root of 27750112 is about 302.7528546316.

Adding to 27750112 its reverse (21105772), we get a palindrome (48855884).

The spelling of 27750112 in words is "twenty-seven million, seven hundred fifty thousand, one hundred twelve".