550145313 has 36 divisors (see below), whose sum is σ = 871506688. Its totient is φ = 334005120.

The previous prime is 550145287. The next prime is 550145327. The reversal of 550145313 is 313541055.

It is not a de Polignac number, because 550145313 - 2⁹ = 550144801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550145383) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 77220 + ... + 84042.

Almost surely, 2^550145313 is an apocalyptic number.

It is an amenable number.

550145313 is a deficient number, since it is larger than the sum of its proper divisors (321361375).

550145313 is a wasteful number, since it uses less digits than its factorization.

550145313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6894 (or 6874 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 550145313 is about 23455.1766780811. The cubic root of 550145313 is about 819.3934206298.

Adding to 550145313 its reverse (313541055), we get a palindrome (863686368).

The spelling of 550145313 in words is "five hundred fifty million, one hundred forty-five thousand, three hundred thirteen".