55228122 has 32 divisors (see below), whose sum is σ = 126964800. Its totient is φ = 17774064.

The previous prime is 55228111. The next prime is 55228127. The reversal of 55228122 is 22182255.

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

It is not an unprimeable number, because it can be changed into a prime (55228127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16068 + ... + 19199.

It is an arithmetic number, because the mean of its divisors is an integer number (3967650).

Almost surely, 2^55228122 is an apocalyptic number.

55228122 is an abundant number, since it is smaller than the sum of its proper divisors (71736678).

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

55228122 is a wasteful number, since it uses less digits than its factorization.

55228122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35307 (or 35301 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 55228122 is about 7431.5625544027. The cubic root of 55228122 is about 380.8203008988.

The spelling of 55228122 in words is "fifty-five million, two hundred twenty-eight thousand, one hundred twenty-two".