550866133 has 2 divisors, whose sum is σ = 550866134. Its totient is φ = 550866132.

The previous prime is 550866097. The next prime is 550866139. The reversal of 550866133 is 331668055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 550465444 + 400689 = 23462^2 + 633^2 .

It is a cyclic number.

It is not a de Polignac number, because 550866133 - 2¹⁷ = 550735061 is a prime.

It is a super-3 number, since 3×550866133³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 550866092 and 550866101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550866139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275433066 + 275433067.

It is an arithmetic number, because the mean of its divisors is an integer number (275433067).

Almost surely, 2^550866133 is an apocalyptic number.

It is an amenable number.

550866133 is a deficient number, since it is larger than the sum of its proper divisors (1).

550866133 is an equidigital number, since it uses as much as digits as its factorization.

550866133 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 550866133 is about 23470.5375524294. The cubic root of 550866133 is about 819.7511306033.

The spelling of 550866133 in words is "five hundred fifty million, eight hundred sixty-six thousand, one hundred thirty-three".