5541867449 has 2 divisors, whose sum is σ = 5541867450. Its totient is φ = 5541867448.

The previous prime is 5541867439. The next prime is 5541867473. The reversal of 5541867449 is 9447681455.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3452737600 + 2089129849 = 58760^2 + 45707^2 .

It is a cyclic number.

It is not a de Polignac number, because 5541867449 - 2²⁰ = 5540818873 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5541867449.

It is not a weakly prime, because it can be changed into another prime (5541867439) 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 as a sum of consecutive naturals, namely, 2770933724 + 2770933725.

It is an arithmetic number, because the mean of its divisors is an integer number (2770933725).

Almost surely, 2^5541867449 is an apocalyptic number.

It is an amenable number.

5541867449 is a deficient number, since it is larger than the sum of its proper divisors (1).

5541867449 is an equidigital number, since it uses as much as digits as its factorization.

5541867449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4838400, while the sum is 53.

The square root of 5541867449 is about 74443.7200104885. The cubic root of 5541867449 is about 1769.6418406683.

The spelling of 5541867449 in words is "five billion, five hundred forty-one million, eight hundred sixty-seven thousand, four hundred forty-nine".