549823853 has 2 divisors, whose sum is σ = 549823854. Its totient is φ = 549823852.

The previous prime is 549823819. The next prime is 549823889. The reversal of 549823853 is 358328945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 428779849 + 121044004 = 20707^2 + 11002^2 .

It is a cyclic number.

It is not a de Polignac number, because 549823853 - 2⁸ = 549823597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 549823798 and 549823807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549823453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274911926 + 274911927.

It is an arithmetic number, because the mean of its divisors is an integer number (274911927).

Almost surely, 2^549823853 is an apocalyptic number.

It is an amenable number.

549823853 is a deficient number, since it is larger than the sum of its proper divisors (1).

549823853 is an equidigital number, since it uses as much as digits as its factorization.

549823853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 47.

The square root of 549823853 is about 23448.3230317223. The cubic root of 549823853 is about 819.2337939984.

The spelling of 549823853 in words is "five hundred forty-nine million, eight hundred twenty-three thousand, eight hundred fifty-three".