5543691121 has 4 divisors (see below), whose sum is σ = 5544800244. Its totient is φ = 5542582000.

The previous prime is 5543691091. The next prime is 5543691133. The reversal of 5543691121 is 1211963455.

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 3789756721 + 1753934400 = 61561^2 + 41880^2 .

It is a cyclic number.

It is not a de Polignac number, because 5543691121 - 2⁹ = 5543690609 is a prime.

It is a super-2 number, since 2×5543691121² = 61465022490108473282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5543697121) 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, 547030 + ... + 557071.

It is an arithmetic number, because the mean of its divisors is an integer number (1386200061).

Almost surely, 2^5543691121 is an apocalyptic number.

It is an amenable number.

5543691121 is a deficient number, since it is larger than the sum of its proper divisors (1109123).

5543691121 is a wasteful number, since it uses less digits than its factorization.

5543691121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109122.

The product of its digits is 32400, while the sum is 37.

The square root of 5543691121 is about 74455.9676654598. The cubic root of 5543691121 is about 1769.8359324235.

The spelling of 5543691121 in words is "five billion, five hundred forty-three million, six hundred ninety-one thousand, one hundred twenty-one".