5543113421 has 4 divisors (see below), whose sum is σ = 5543599644. Its totient is φ = 5542627200.

The previous prime is 5543113357. The next prime is 5543113469. The reversal of 5543113421 is 1243113455.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1170597796 + 4372515625 = 34214^2 + 66125^2 .

It is a cyclic number.

It is not a de Polignac number, because 5543113421 - 2⁶ = 5543113357 is a prime.

It is a super-2 number, since 2×5543113421² = 61452212796140646482, 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 (5543113021) 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, 225590 + ... + 248951.

It is an arithmetic number, because the mean of its divisors is an integer number (1385899911).

Almost surely, 2^5543113421 is an apocalyptic number.

It is an amenable number.

5543113421 is a deficient number, since it is larger than the sum of its proper divisors (486223).

5543113421 is a wasteful number, since it uses less digits than its factorization.

5543113421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486222.

The product of its digits is 7200, while the sum is 29.

The square root of 5543113421 is about 74452.0880902611. The cubic root of 5543113421 is about 1769.7744529439.

Adding to 5543113421 its reverse (1243113455), we get a palindrome (6786226876).

The spelling of 5543113421 in words is "five billion, five hundred forty-three million, one hundred thirteen thousand, four hundred twenty-one".