55112288 has 48 divisors (see below), whose sum is σ = 135281664. Its totient is φ = 21471360.

The previous prime is 55112287. The next prime is 55112297. The reversal of 55112288 is 88221155.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55112287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8720 + ... + 13647.

It is an arithmetic number, because the mean of its divisors is an integer number (2818368).

Almost surely, 2^55112288 is an apocalyptic number.

It is an amenable number.

55112288 is an abundant number, since it is smaller than the sum of its proper divisors (80169376).

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

55112288 is a wasteful number, since it uses less digits than its factorization.

55112288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22395 (or 22387 counting only the distinct ones).

The product of its digits is 6400, while the sum is 32.

The square root of 55112288 is about 7423.7650824902. The cubic root of 55112288 is about 380.5538737426.

It can be divided in two parts, 55112 and 288, that multiplied together give a square (15872256 = 3984²).

The spelling of 55112288 in words is "fifty-five million, one hundred twelve thousand, two hundred eighty-eight".