54021433 has 4 divisors (see below), whose sum is σ = 54042660. Its totient is φ = 54000208.

The previous prime is 54021421. The next prime is 54021439. The reversal of 54021433 is 33412045.

54021433 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 an emirpimes, since its reverse is a distinct semiprime: 33412045 = 5 ⋅6682409.

It can be written as a sum of positive squares in 2 ways, for example, as 24078649 + 29942784 = 4907^2 + 5472^2 .

It is a cyclic number.

It is not a de Polignac number, because 54021433 - 2¹³ = 54013241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54021439) 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, 6178 + ... + 12091.

It is an arithmetic number, because the mean of its divisors is an integer number (13510665).

Almost surely, 2^54021433 is an apocalyptic number.

It is an amenable number.

54021433 is a deficient number, since it is larger than the sum of its proper divisors (21227).

54021433 is a wasteful number, since it uses less digits than its factorization.

54021433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21226.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 54021433 is about 7349.9274146076. The cubic root of 54021433 is about 378.0263155536.

Adding to 54021433 its reverse (33412045), we get a palindrome (87433478).

The spelling of 54021433 in words is "fifty-four million, twenty-one thousand, four hundred thirty-three".