54433020121 has 4 divisors (see below), whose sum is σ = 54433637044. Its totient is φ = 54432403200.

The previous prime is 54433020113. The next prime is 54433020139. The reversal of 54433020121 is 12102033445.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 672105625 + 53760914496 = 25925^2 + 231864^2 .

It is a cyclic number.

It is not a de Polignac number, because 54433020121 - 2³ = 54433020113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54433020101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148440 + ... + 361801.

It is an arithmetic number, because the mean of its divisors is an integer number (13608409261).

Almost surely, 2^54433020121 is an apocalyptic number.

It is an amenable number.

54433020121 is a deficient number, since it is larger than the sum of its proper divisors (616923).

54433020121 is a wasteful number, since it uses less digits than its factorization.

54433020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616922.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 54433020121 its reverse (12102033445), we get a palindrome (66535053566).

The spelling of 54433020121 in words is "fifty-four billion, four hundred thirty-three million, twenty thousand, one hundred twenty-one".