549929945 has 16 divisors (see below), whose sum is σ = 675291600. Its totient is φ = 429792000.

The previous prime is 549929921. The next prime is 549929969.

549929945 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (549929921) and next prime (549929969).

It can be written as a sum of positive squares in 8 ways, for example, as 23319241 + 526610704 = 4829^2 + 22948^2 .

It is not a de Polignac number, because 549929945 - 2¹⁸ = 549667801 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39395 + ... + 51495.

It is an arithmetic number, because the mean of its divisors is an integer number (42205725).

Almost surely, 2^549929945 is an apocalyptic number.

It is an amenable number.

549929945 is a deficient number, since it is larger than the sum of its proper divisors (125361655).

549929945 is a wasteful number, since it uses less digits than its factorization.

549929945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12316.

The product of its digits is 5248800, while the sum is 56.

The square root of 549929945 is about 23450.5851739354. The cubic root of 549929945 is about 819.2864827287.

The spelling of 549929945 in words is "five hundred forty-nine million, nine hundred twenty-nine thousand, nine hundred forty-five".