54103221 has 12 divisors (see below), whose sum is σ = 81043872. Its totient is φ = 36068652.

The previous prime is 54103219. The next prime is 54103243. The reversal of 54103221 is 12230145.

It is not a de Polignac number, because 54103221 - 2¹ = 54103219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54103194 and 54103203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54103261) 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, 111081 + ... + 111566.

It is an arithmetic number, because the mean of its divisors is an integer number (6753656).

Almost surely, 2^54103221 is an apocalyptic number.

It is an amenable number.

54103221 is a deficient number, since it is larger than the sum of its proper divisors (26940651).

54103221 is an equidigital number, since it uses as much as digits as its factorization.

54103221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222662 (or 222650 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 54103221 is about 7355.4891747592. The cubic root of 54103221 is about 378.2169955886.

Adding to 54103221 its reverse (12230145), we get a palindrome (66333366).

The spelling of 54103221 in words is "fifty-four million, one hundred three thousand, two hundred twenty-one".