54184221 has 40 divisors (see below), whose sum is σ = 99634304. Its totient is φ = 28576800.

The previous prime is 54184211. The next prime is 54184223. The reversal of 54184221 is 12248145.

It is not a de Polignac number, because 54184221 - 2⁶ = 54184157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54184223) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3696 + ... + 11046.

Almost surely, 2^54184221 is an apocalyptic number.

It is an amenable number.

54184221 is a deficient number, since it is larger than the sum of its proper divisors (45450083).

54184221 is a wasteful number, since it uses less digits than its factorization.

54184221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7383 (or 7374 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 54184221 is about 7360.9932074415. The cubic root of 54184221 is about 378.4056491796.

The spelling of 54184221 in words is "fifty-four million, one hundred eighty-four thousand, two hundred twenty-one".