54223521 has 8 divisors (see below), whose sum is σ = 78870624. Its totient is φ = 32862720.

The previous prime is 54223493. The next prime is 54223529. The reversal of 54223521 is 12532245.

54223521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 54223521 - 2⁶ = 54223457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54223491 and 54223500.

It is not an unprimeable number, because it can be changed into a prime (54223529) 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, 821536 + ... + 821601.

It is an arithmetic number, because the mean of its divisors is an integer number (9858828).

Almost surely, 2^54223521 is an apocalyptic number.

It is an amenable number.

54223521 is a deficient number, since it is larger than the sum of its proper divisors (24647103).

54223521 is a wasteful number, since it uses less digits than its factorization.

54223521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643151.

The product of its digits is 2400, while the sum is 24.

The square root of 54223521 is about 7363.6622002914. The cubic root of 54223521 is about 378.4971133720.

Adding to 54223521 its reverse (12532245), we get a palindrome (66755766).

The spelling of 54223521 in words is "fifty-four million, two hundred twenty-three thousand, five hundred twenty-one".