550640269 has 2 divisors, whose sum is σ = 550640270. Its totient is φ = 550640268.

The previous prime is 550640261. The next prime is 550640317. The reversal of 550640269 is 962046055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 544662244 + 5978025 = 23338^2 + 2445^2 .

It is a cyclic number.

It is not a de Polignac number, because 550640269 - 2³ = 550640261 is a prime.

It is a super-2 number, since 2×550640269² = 606409411688784722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550640261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275320134 + 275320135.

It is an arithmetic number, because the mean of its divisors is an integer number (275320135).

Almost surely, 2^550640269 is an apocalyptic number.

It is an amenable number.

550640269 is a deficient number, since it is larger than the sum of its proper divisors (1).

550640269 is an equidigital number, since it uses as much as digits as its factorization.

550640269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 550640269 is about 23465.7254096267. The cubic root of 550640269 is about 819.6390782254.

The spelling of 550640269 in words is "five hundred fifty million, six hundred forty thousand, two hundred sixty-nine".