55112013 has 12 divisors (see below), whose sum is σ = 86843328. Its totient is φ = 33401160.

The previous prime is 55112009. The next prime is 55112033. The reversal of 55112013 is 31021155.

55112013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55112013 - 2² = 55112009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55112033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 278245 + ... + 278442.

It is an arithmetic number, because the mean of its divisors is an integer number (7236944).

Almost surely, 2^55112013 is an apocalyptic number.

It is an amenable number.

55112013 is a deficient number, since it is larger than the sum of its proper divisors (31731315).

55112013 is a wasteful number, since it uses less digits than its factorization.

55112013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556704 (or 556701 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 55112013 is about 7423.7465608680. The cubic root of 55112013 is about 380.5532407774.

Adding to 55112013 its reverse (31021155), we get a palindrome (86133168).

The spelling of 55112013 in words is "fifty-five million, one hundred twelve thousand, thirteen".