54556221 has 8 divisors (see below), whose sum is σ = 75250080. Its totient is φ = 35116592.

The previous prime is 54556219. The next prime is 54556223. The reversal of 54556221 is 12265545.

54556221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (54556219) and next prime (54556223).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54556221 - 2¹ = 54556219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54556223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313455 + ... + 313628.

It is an arithmetic number, because the mean of its divisors is an integer number (9406260).

Almost surely, 2^54556221 is an apocalyptic number.

It is an amenable number.

54556221 is a deficient number, since it is larger than the sum of its proper divisors (20693859).

54556221 is a wasteful number, since it uses less digits than its factorization.

54556221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627115.

The product of its digits is 12000, while the sum is 30.

The square root of 54556221 is about 7386.2183152138. The cubic root of 54556221 is about 379.2696521340.

The spelling of 54556221 in words is "fifty-four million, five hundred fifty-six thousand, two hundred twenty-one".