549067361 has 4 divisors (see below), whose sum is σ = 550032900. Its totient is φ = 548101824.

The previous prime is 549067331. The next prime is 549067369. The reversal of 549067361 is 163760945.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 163760945 = 5 ⋅32752189.

It can be written as a sum of positive squares in 2 ways, for example, as 182115025 + 366952336 = 13495^2 + 19156^2 .

It is a cyclic number.

It is not a de Polignac number, because 549067361 - 2⁶ = 549067297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549067369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481916 + ... + 483053.

It is an arithmetic number, because the mean of its divisors is an integer number (137508225).

Almost surely, 2^549067361 is an apocalyptic number.

It is an amenable number.

549067361 is a deficient number, since it is larger than the sum of its proper divisors (965539).

549067361 is an equidigital number, since it uses as much as digits as its factorization.

549067361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965538.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 549067361 is about 23432.1864323413. The cubic root of 549067361 is about 818.8578989085.

The spelling of 549067361 in words is "five hundred forty-nine million, sixty-seven thousand, three hundred sixty-one".