55123227 has 8 divisors (see below), whose sum is σ = 81664080. Its totient is φ = 36748800.

The previous prime is 55123223. The next prime is 55123241. The reversal of 55123227 is 72232155.

55123227 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 55123227 - 2² = 55123223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2041601 = 55123227 / (5 + 5 + 1 + 2 + 3 + 2 + 2 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 55123227.

It is not an unprimeable number, because it can be changed into a prime (55123223) 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 7 ways as a sum of consecutive naturals, for example, 1020774 + ... + 1020827.

It is an arithmetic number, because the mean of its divisors is an integer number (10208010).

Almost surely, 2^55123227 is an apocalyptic number.

55123227 is a deficient number, since it is larger than the sum of its proper divisors (26540853).

55123227 is a wasteful number, since it uses less digits than its factorization.

55123227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041610 (or 2041604 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 55123227 is about 7424.5018014679. The cubic root of 55123227 is about 380.5790502419.

The spelling of 55123227 in words is "fifty-five million, one hundred twenty-three thousand, two hundred twenty-seven".