55112616 has 128 divisors (see below), whose sum is σ = 173712000. Its totient is φ = 16049664.

The previous prime is 55112611. The next prime is 55112639. The reversal of 55112616 is 61621155.

It is a happy number.

55112616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 55112616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55112611) 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 31 ways as a sum of consecutive naturals, for example, 52836 + ... + 53868.

It is an arithmetic number, because the mean of its divisors is an integer number (1357125).

Almost surely, 2^55112616 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 55112616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86856000).

55112616 is an abundant number, since it is smaller than the sum of its proper divisors (118599384).

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

55112616 is a wasteful number, since it uses less digits than its factorization.

55112616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080 (or 1070 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 55112616 is about 7423.7871736736. The cubic root of 55112616 is about 380.5546286948.

The spelling of 55112616 in words is "fifty-five million, one hundred twelve thousand, six hundred sixteen".