549055431 has 6 divisors (see below), whose sum is σ = 793080080. Its totient is φ = 366036948.

The previous prime is 549055427. The next prime is 549055439. The reversal of 549055431 is 134550945.

It is not a de Polignac number, because 549055431 - 2² = 549055427 is a prime.

It is a super-2 number, since 2×549055431² = 602923732621191522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549055439) 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 in 5 ways as a sum of consecutive naturals, for example, 30503071 + ... + 30503088.

Almost surely, 2^549055431 is an apocalyptic number.

549055431 is a deficient number, since it is larger than the sum of its proper divisors (244024649).

549055431 is a wasteful number, since it uses less digits than its factorization.

549055431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61006165 (or 61006162 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 549055431 is about 23431.9318665790. The cubic root of 549055431 is about 818.8519682182.

The spelling of 549055431 in words is "five hundred forty-nine million, fifty-five thousand, four hundred thirty-one".