55120112 has 20 divisors (see below), whose sum is σ = 107069040. Its totient is φ = 27489408.

The previous prime is 55120099. The next prime is 55120123. The reversal of 55120112 is 21102155.

It is a congruent number.

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, 2333 + ... + 10755.

It is an arithmetic number, because the mean of its divisors is an integer number (5353452).

Almost surely, 2^55120112 is an apocalyptic number.

It is an amenable number.

55120112 is a deficient number, since it is larger than the sum of its proper divisors (51948928).

55120112 is a wasteful number, since it uses less digits than its factorization.

55120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8840 (or 8834 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 55120112 is about 7424.2920201188. The cubic root of 55120112 is about 380.5718812973.

Adding to 55120112 its reverse (21102155), we get a palindrome (76222267).

The spelling of 55120112 in words is "fifty-five million, one hundred twenty thousand, one hundred twelve".