543221053 has 4 divisors (see below), whose sum is σ = 543274560. Its totient is φ = 543167548.

The previous prime is 543221033. The next prime is 543221057. The reversal of 543221053 is 350122345.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 543221053 - 2²¹ = 541123901 is a prime.

It is a super-2 number, since 2×543221053² = 590178224844857618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543221057) 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, 6325 + ... + 33562.

It is an arithmetic number, because the mean of its divisors is an integer number (135818640).

Almost surely, 2^543221053 is an apocalyptic number.

It is an amenable number.

543221053 is a deficient number, since it is larger than the sum of its proper divisors (53507).

543221053 is a wasteful number, since it uses less digits than its factorization.

543221053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53506.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 543221053 is about 23307.1030589389. The cubic root of 543221053 is about 815.9412027712.

Adding to 543221053 its reverse (350122345), we get a palindrome (893343398).

The spelling of 543221053 in words is "five hundred forty-three million, two hundred twenty-one thousand, fifty-three".