550625993 has 2 divisors, whose sum is σ = 550625994. Its totient is φ = 550625992.

The previous prime is 550625989. The next prime is 550626007. The reversal of 550625993 is 399526055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 335915584 + 214710409 = 18328^2 + 14653^2 .

It is a cyclic number.

It is not a de Polignac number, because 550625993 - 2² = 550625989 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (550625923) 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, 275312996 + 275312997.

It is an arithmetic number, because the mean of its divisors is an integer number (275312997).

Almost surely, 2^550625993 is an apocalyptic number.

It is an amenable number.

550625993 is a deficient number, since it is larger than the sum of its proper divisors (1).

550625993 is an equidigital number, since it uses as much as digits as its factorization.

550625993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 364500, while the sum is 44.

The square root of 550625993 is about 23465.4212193176. The cubic root of 550625993 is about 819.6319947935.

The spelling of 550625993 in words is "five hundred fifty million, six hundred twenty-five thousand, nine hundred ninety-three".