5543958181 has 2 divisors, whose sum is σ = 5543958182. Its totient is φ = 5543958180.

The previous prime is 5543958163. The next prime is 5543958193. The reversal of 5543958181 is 1818593455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3515897025 + 2028061156 = 59295^2 + 45034^2 .

It is a cyclic number.

It is not a de Polignac number, because 5543958181 - 2²⁹ = 5007087269 is a prime.

It is a super-2 number, since 2×5543958181² = 61470944625353657522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5543938181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2771979090 + 2771979091.

It is an arithmetic number, because the mean of its divisors is an integer number (2771979091).

Almost surely, 2^5543958181 is an apocalyptic number.

It is an amenable number.

5543958181 is a deficient number, since it is larger than the sum of its proper divisors (1).

5543958181 is an equidigital number, since it uses as much as digits as its factorization.

5543958181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864000, while the sum is 49.

The square root of 5543958181 is about 74457.7610528278. The cubic root of 5543958181 is about 1769.8643518036.

The spelling of 5543958181 in words is "five billion, five hundred forty-three million, nine hundred fifty-eight thousand, one hundred eighty-one".