5421235543 has 4 divisors (see below), whose sum is σ = 5421385600. Its totient is φ = 5421085488.

The previous prime is 5421235541. The next prime is 5421235559. The reversal of 5421235543 is 3455321245.

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 is a cyclic number.

It is not a de Polignac number, because 5421235543 - 2¹ = 5421235541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5421235499 and 5421235508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421235541) 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 3 ways as a sum of consecutive naturals, for example, 15883 + ... + 105331.

It is an arithmetic number, because the mean of its divisors is an integer number (1355346400).

Almost surely, 2^5421235543 is an apocalyptic number.

5421235543 is a deficient number, since it is larger than the sum of its proper divisors (150057).

5421235543 is an equidigital number, since it uses as much as digits as its factorization.

5421235543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150056.

The product of its digits is 72000, while the sum is 34.

The square root of 5421235543 is about 73629.0400793057. The cubic root of 5421235543 is about 1756.7073795164.

Adding to 5421235543 its reverse (3455321245), we get a palindrome (8876556788).

The spelling of 5421235543 in words is "five billion, four hundred twenty-one million, two hundred thirty-five thousand, five hundred forty-three".