505089229 has 2 divisors, whose sum is σ = 505089230. Its totient is φ = 505089228.

The previous prime is 505089187. The next prime is 505089239. The reversal of 505089229 is 922980505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 489073225 + 16016004 = 22115^2 + 4002^2 .

It is a cyclic number.

It is not a de Polignac number, because 505089229 - 2¹¹ = 505087181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505089191 and 505089200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505089239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252544614 + 252544615.

It is an arithmetic number, because the mean of its divisors is an integer number (252544615).

Almost surely, 2^505089229 is an apocalyptic number.

It is an amenable number.

505089229 is a deficient number, since it is larger than the sum of its proper divisors (1).

505089229 is an equidigital number, since it uses as much as digits as its factorization.

505089229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 505089229 is about 22474.1902857478. The cubic root of 505089229 is about 796.3843233257.

The spelling of 505089229 in words is "five hundred five million, eighty-nine thousand, two hundred twenty-nine".