55112012 has 12 divisors (see below), whose sum is σ = 98498400. Its totient is φ = 26969616.

The previous prime is 55112009. The next prime is 55112033. The reversal of 55112012 is 21021155.

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, 146387 + ... + 146762.

It is an arithmetic number, because the mean of its divisors is an integer number (8208200).

Almost surely, 2^55112012 is an apocalyptic number.

It is an amenable number.

55112012 is a deficient number, since it is larger than the sum of its proper divisors (43386388).

55112012 is a wasteful number, since it uses less digits than its factorization.

55112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293200 (or 293198 counting only the distinct ones).

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

The square root of 55112012 is about 7423.7464935166. The cubic root of 55112012 is about 380.5532384757.

Adding to 55112012 its reverse (21021155), we get a palindrome (76133167).

The spelling of 55112012 in words is "fifty-five million, one hundred twelve thousand, twelve".