549513 has 6 divisors (see below), whose sum is σ = 793754. Its totient is φ = 366336.

The previous prime is 549511. The next prime is 549517. The reversal of 549513 is 315945.

It can be written as a sum of positive squares in only one way, i.e., 535824 + 13689 = 732^2 + 117^2 .

It is not a de Polignac number, because 549513 - 2¹ = 549511 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549513.

It is not an unprimeable number, because it can be changed into a prime (549511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30520 + ... + 30537.

2⁵⁴⁹⁵¹³ is an apocalyptic number.

It is an amenable number.

549513 is a deficient number, since it is larger than the sum of its proper divisors (244241).

549513 is a wasteful number, since it uses less digits than its factorization.

549513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61063 (or 61060 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 549513 is about 741.2914406628. The cubic root of 549513 is about 81.9079375276.

The spelling of 549513 in words is "five hundred forty-nine thousand, five hundred thirteen".