550613 has 12 divisors (see below), whose sum is σ = 679212. Its totient is φ = 443520.

The previous prime is 550609. The next prime is 550621. The reversal of 550613 is 316055.

550613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 432964 + 117649 = 658^2 + 343^2 .

It is not a de Polignac number, because 550613 - 2² = 550609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 503 + ... + 1163.

It is an arithmetic number, because the mean of its divisors is an integer number (56601).

2⁵⁵⁰⁶¹³ is an apocalyptic number.

It is an amenable number.

550613 is a deficient number, since it is larger than the sum of its proper divisors (128599).

550613 is a wasteful number, since it uses less digits than its factorization.

550613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 550613 is about 742.0330181333. The cubic root of 550613 is about 81.9625547851.

Adding to 550613 its reverse (316055), we get a palindrome (866668).

The spelling of 550613 in words is "five hundred fifty thousand, six hundred thirteen".