550521193 has 2 divisors, whose sum is σ = 550521194. Its totient is φ = 550521192.

The previous prime is 550521173. The next prime is 550521203. The reversal of 550521193 is 391125055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 408363264 + 142157929 = 20208^2 + 11923^2 .

It is a cyclic number.

It is not a de Polignac number, because 550521193 - 2⁵ = 550521161 is a prime.

It is not a weakly prime, because it can be changed into another prime (550521163) 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, 275260596 + 275260597.

It is an arithmetic number, because the mean of its divisors is an integer number (275260597).

Almost surely, 2^550521193 is an apocalyptic number.

It is an amenable number.

550521193 is a deficient number, since it is larger than the sum of its proper divisors (1).

550521193 is an equidigital number, since it uses as much as digits as its factorization.

550521193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 550521193 is about 23463.1880399915. The cubic root of 550521193 is about 819.5799916284.

The spelling of 550521193 in words is "five hundred fifty million, five hundred twenty-one thousand, one hundred ninety-three".