54221244 has 144 divisors (see below), whose sum is σ = 164094336. Its totient is φ = 13776000.

The previous prime is 54221239. The next prime is 54221257. The reversal of 54221244 is 44212245.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 536794 + ... + 536894.

It is an arithmetic number, because the mean of its divisors is an integer number (1139544).

Almost surely, 2^54221244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54221244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82047168).

54221244 is an abundant number, since it is smaller than the sum of its proper divisors (109873092).

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

54221244 is a wasteful number, since it uses less digits than its factorization.

54221244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 207 counting only the distinct ones).

The product of its digits is 2560, while the sum is 24.

The square root of 54221244 is about 7363.5075880996. The cubic root of 54221244 is about 378.4918152408.

Adding to 54221244 its reverse (44212245), we get a palindrome (98433489).

It can be divided in two parts, 5422 and 1244, that added together give a palindrome (6666).

The spelling of 54221244 in words is "fifty-four million, two hundred twenty-one thousand, two hundred forty-four".