54244221 has 12 divisors (see below), whose sum is σ = 76334112. Its totient is φ = 34258824.

The previous prime is 54244193. The next prime is 54244231. The reversal of 54244221 is 12244245.

It is a happy number.

It is not a de Polignac number, because 54244221 - 2¹⁰ = 54243197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54244191 and 54244200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54244231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23961 + ... + 26126.

It is an arithmetic number, because the mean of its divisors is an integer number (6361176).

Almost surely, 2^54244221 is an apocalyptic number.

It is an amenable number.

54244221 is a deficient number, since it is larger than the sum of its proper divisors (22089891).

54244221 is a wasteful number, since it uses less digits than its factorization.

54244221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50128 (or 50109 counting only the distinct ones).

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

The square root of 54244221 is about 7365.0676167976. The cubic root of 54244221 is about 378.5452713996.

Adding to 54244221 its sum of digits (24), we get a palindrome (54244245).

Adding to 54244221 its reverse (12244245), we get a palindrome (66488466).

The spelling of 54244221 in words is "fifty-four million, two hundred forty-four thousand, two hundred twenty-one".