549877543 has 2 divisors, whose sum is σ = 549877544. Its totient is φ = 549877542.

The previous prime is 549877501. The next prime is 549877547. The reversal of 549877543 is 345778945.

549877543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-549877543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549877547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274938771 + 274938772.

It is an arithmetic number, because the mean of its divisors is an integer number (274938772).

Almost surely, 2^549877543 is an apocalyptic number.

549877543 is a deficient number, since it is larger than the sum of its proper divisors (1).

549877543 is an equidigital number, since it uses as much as digits as its factorization.

549877543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4233600, while the sum is 52.

The square root of 549877543 is about 23449.4678617661. The cubic root of 549877543 is about 819.2604590419.

The spelling of 549877543 in words is "five hundred forty-nine million, eight hundred seventy-seven thousand, five hundred forty-three".