55227186 has 192 divisors, whose sum is σ = 161740800. Its totient is φ = 13229568.

The previous prime is 55227181. The next prime is 55227197. The reversal of 55227186 is 68172255.

It is a happy number.

55227186 is a `hidden beast` number, since 552 + 27 + 1 + 86 = 666.

55227186 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55227186.

It is not an unprimeable number, because it can be changed into a prime (55227181) 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 95 ways as a sum of consecutive naturals, for example, 936025 + ... + 936083.

It is an arithmetic number, because the mean of its divisors is an integer number (842400).

Almost surely, 2^55227186 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55227186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80870400).

55227186 is an abundant number, since it is smaller than the sum of its proper divisors (106513614).

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

55227186 is a wasteful number, since it uses less digits than its factorization.

55227186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 130 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 55227186 is about 7431.4995794927. The cubic root of 55227186 is about 380.8181495201.

The spelling of 55227186 in words is "fifty-five million, two hundred twenty-seven thousand, one hundred eighty-six".