550783393 has 2 divisors, whose sum is σ = 550783394. Its totient is φ = 550783392.

The previous prime is 550783307. The next prime is 550783403. The reversal of 550783393 is 393387055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 509720929 + 41062464 = 22577^2 + 6408^2 .

It is a cyclic number.

It is not a de Polignac number, because 550783393 - 2²¹ = 548686241 is a prime.

It is not a weakly prime, because it can be changed into another prime (550783193) 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 as a sum of consecutive naturals, namely, 275391696 + 275391697.

It is an arithmetic number, because the mean of its divisors is an integer number (275391697).

Almost surely, 2^550783393 is an apocalyptic number.

It is an amenable number.

550783393 is a deficient number, since it is larger than the sum of its proper divisors (1).

550783393 is an equidigital number, since it uses as much as digits as its factorization.

550783393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 340200, while the sum is 43.

The square root of 550783393 is about 23468.7748508524. The cubic root of 550783393 is about 819.7100863879.

The spelling of 550783393 in words is "five hundred fifty million, seven hundred eighty-three thousand, three hundred ninety-three".