549767945 has 16 divisors (see below), whose sum is σ = 695640000. Its totient is φ = 415948608.

The previous prime is 549767923. The next prime is 549767951.

549767945 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 549767945 - 2¹² = 549763849 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54131 + ... + 63479.

It is an arithmetic number, because the mean of its divisors is an integer number (43477500).

Almost surely, 2^549767945 is an apocalyptic number.

It is an amenable number.

549767945 is a deficient number, since it is larger than the sum of its proper divisors (145872055).

549767945 is a wasteful number, since it uses less digits than its factorization.

549767945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9992.

The product of its digits is 9525600, while the sum is 56.

The square root of 549767945 is about 23447.1308479311. The cubic root of 549767945 is about 819.2060255442.

The spelling of 549767945 in words is "five hundred forty-nine million, seven hundred sixty-seven thousand, nine hundred forty-five".