5533543021 has 16 divisors (see below), whose sum is σ = 5916556800. Its totient is φ = 5162739120.

The previous prime is 5533542977. The next prime is 5533543063. The reversal of 5533543021 is 1203453355.

It is a cyclic number.

It is not a de Polignac number, because 5533543021 - 2⁷ = 5533542893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5533543091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 798630 + ... + 805528.

It is an arithmetic number, because the mean of its divisors is an integer number (369784800).

Almost surely, 2^5533543021 is an apocalyptic number.

It is an amenable number.

5533543021 is a deficient number, since it is larger than the sum of its proper divisors (383013779).

5533543021 is a wasteful number, since it uses less digits than its factorization.

5533543021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7776.

The product of its (nonzero) digits is 27000, while the sum is 31.

The square root of 5533543021 is about 74387.7881174054. The cubic root of 5533543021 is about 1768.7553381602.

Adding to 5533543021 its reverse (1203453355), we get a palindrome (6736996376).

The spelling of 5533543021 in words is "five billion, five hundred thirty-three million, five hundred forty-three thousand, twenty-one".