550501313 has 2 divisors, whose sum is σ = 550501314. Its totient is φ = 550501312.

The previous prime is 550501283. The next prime is 550501333. The reversal of 550501313 is 313105055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 547232449 + 3268864 = 23393^2 + 1808^2 .

It is a cyclic number.

It is not a de Polignac number, because 550501313 - 2⁸ = 550501057 is a prime.

It is a super-2 number, since 2×550501313² = 606103391229447938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (550501333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275250656 + 275250657.

It is an arithmetic number, because the mean of its divisors is an integer number (275250657).

Almost surely, 2^550501313 is an apocalyptic number.

It is an amenable number.

550501313 is a deficient number, since it is larger than the sum of its proper divisors (1).

550501313 is an equidigital number, since it uses as much as digits as its factorization.

550501313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 550501313 is about 23462.7643938220. The cubic root of 550501313 is about 819.5701261612.

Adding to 550501313 its reverse (313105055), we get a palindrome (863606368).

The spelling of 550501313 in words is "five hundred fifty million, five hundred one thousand, three hundred thirteen".