55424226 has 48 divisors (see below), whose sum is σ = 130969440. Its totient is φ = 15500160.

The previous prime is 55424219. The next prime is 55424231. The reversal of 55424226 is 62242455.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55424193 and 55424202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8670 + ... + 13638.

It is an arithmetic number, because the mean of its divisors is an integer number (2728530).

Almost surely, 2^55424226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55424226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65484720).

55424226 is an abundant number, since it is smaller than the sum of its proper divisors (75545214).

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

55424226 is a wasteful number, since it uses less digits than its factorization.

55424226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011 (or 4998 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 55424226 is about 7444.7448579518. The cubic root of 55424226 is about 381.2705073265.

The spelling of 55424226 in words is "fifty-five million, four hundred twenty-four thousand, two hundred twenty-six".