549799031 has 2 divisors, whose sum is σ = 549799032. Its totient is φ = 549799030.

The previous prime is 549799027. The next prime is 549799049. The reversal of 549799031 is 130997945.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 549799031 - 2² = 549799027 is a prime.

It is a super-2 number, since 2×549799031² = 604557948977077922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549799331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274899515 + 274899516.

It is an arithmetic number, because the mean of its divisors is an integer number (274899516).

Almost surely, 2^549799031 is an apocalyptic number.

549799031 is a deficient number, since it is larger than the sum of its proper divisors (1).

549799031 is an equidigital number, since it uses as much as digits as its factorization.

549799031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306180, while the sum is 47.

The square root of 549799031 is about 23447.7937341661. The cubic root of 549799031 is about 819.2214656093.

The spelling of 549799031 in words is "five hundred forty-nine million, seven hundred ninety-nine thousand, thirty-one".