550313 has 4 divisors (see below), whose sum is σ = 553668. Its totient is φ = 546960.

The previous prime is 550309. The next prime is 550337. The reversal of 550313 is 313055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 267289 + 283024 = 517^2 + 532^2 .

It is a cyclic number.

It is not a de Polignac number, because 550313 - 2² = 550309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 550291 and 550300.

It is not an unprimeable number, because it can be changed into a prime (550213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418 + ... + 1763.

It is an arithmetic number, because the mean of its divisors is an integer number (138417).

2⁵⁵⁰³¹³ is an apocalyptic number.

It is an amenable number.

550313 is a deficient number, since it is larger than the sum of its proper divisors (3355).

550313 is a wasteful number, since it uses less digits than its factorization.

550313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3354.

The product of its (nonzero) digits is 225, while the sum is 17.

The square root of 550313 is about 741.8308432520. The cubic root of 550313 is about 81.9476663889.

Adding to 550313 its reverse (313055), we get a palindrome (863368).

The spelling of 550313 in words is "five hundred fifty thousand, three hundred thirteen".