54521443433 has 4 divisors (see below), whose sum is σ = 54550742148. Its totient is φ = 54492144720.

The previous prime is 54521443381. The next prime is 54521443441. The reversal of 54521443433 is 33434412545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33434412545 = 5 ⋅6686882509.

It can be written as a sum of positive squares in 2 ways, for example, as 1861749904 + 52659693529 = 43148^2 + 229477^2 .

It is a cyclic number.

It is not a de Polignac number, because 54521443433 - 2¹⁴ = 54521427049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54521143433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14646566 + ... + 14650287.

It is an arithmetic number, because the mean of its divisors is an integer number (13637685537).

Almost surely, 2^54521443433 is an apocalyptic number.

It is an amenable number.

54521443433 is a deficient number, since it is larger than the sum of its proper divisors (29298715).

54521443433 is a wasteful number, since it uses less digits than its factorization.

54521443433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29298714.

The product of its digits is 345600, while the sum is 38.

Adding to 54521443433 its reverse (33434412545), we get a palindrome (87955855978).

The spelling of 54521443433 in words is "fifty-four billion, five hundred twenty-one million, four hundred forty-three thousand, four hundred thirty-three".