54404421 has 4 divisors (see below), whose sum is σ = 72539232. Its totient is φ = 36269612.

The previous prime is 54404401. The next prime is 54404459. The reversal of 54404421 is 12440445.

It is a happy number.

54404421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54404421 - 2¹¹ = 54402373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54404391 and 54404400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54404401) 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 3 ways as a sum of consecutive naturals, for example, 9067401 + ... + 9067406.

It is an arithmetic number, because the mean of its divisors is an integer number (18134808).

Almost surely, 2^54404421 is an apocalyptic number.

It is an amenable number.

54404421 is a deficient number, since it is larger than the sum of its proper divisors (18134811).

54404421 is a wasteful number, since it uses less digits than its factorization.

54404421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18134810.

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

The square root of 54404421 is about 7375.9352627311. The cubic root of 54404421 is about 378.9175589906.

Adding to 54404421 its reverse (12440445), we get a palindrome (66844866).

The spelling of 54404421 in words is "fifty-four million, four hundred four thousand, four hundred twenty-one".