550404317 has 2 divisors, whose sum is σ = 550404318. Its totient is φ = 550404316.

The previous prime is 550404259. The next prime is 550404389. The reversal of 550404317 is 713404055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 415588996 + 134815321 = 20386^2 + 11611^2 .

It is a cyclic number.

It is not a de Polignac number, because 550404317 - 2²⁶ = 483295453 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 550404317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550404917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275202158 + 275202159.

It is an arithmetic number, because the mean of its divisors is an integer number (275202159).

Almost surely, 2^550404317 is an apocalyptic number.

It is an amenable number.

550404317 is a deficient number, since it is larger than the sum of its proper divisors (1).

550404317 is an equidigital number, since it uses as much as digits as its factorization.

550404317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 550404317 is about 23460.6972829027. The cubic root of 550404317 is about 819.5219884054.

The spelling of 550404317 in words is "five hundred fifty million, four hundred four thousand, three hundred seventeen".