549222945 has 8 divisors (see below), whose sum is σ = 878756736. Its totient is φ = 292918896.

The previous prime is 549222943. The next prime is 549222959.

549222945 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 549222945 - 2¹ = 549222943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 549222897 and 549222906.

It is not an unprimeable number, because it can be changed into a prime (549222943) 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 in 7 ways as a sum of consecutive naturals, for example, 18307417 + ... + 18307446.

It is an arithmetic number, because the mean of its divisors is an integer number (109844592).

Almost surely, 2^549222945 is an apocalyptic number.

It is an amenable number.

549222945 is a deficient number, since it is larger than the sum of its proper divisors (329533791).

549222945 is a wasteful number, since it uses less digits than its factorization.

549222945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36614871.

The product of its digits is 259200, while the sum is 42.

The square root of 549222945 is about 23435.5060751843. The cubic root of 549222945 is about 818.9352355979.

The spelling of 549222945 in words is "five hundred forty-nine million, two hundred twenty-two thousand, nine hundred forty-five".