505829089 has 2 divisors, whose sum is σ = 505829090. Its totient is φ = 505829088.

The previous prime is 505829057. The next prime is 505829099. The reversal of 505829089 is 980928505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 456548689 + 49280400 = 21367^2 + 7020^2 .

It is a cyclic number.

It is not a de Polignac number, because 505829089 - 2⁵ = 505829057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (505829099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252914544 + 252914545.

It is an arithmetic number, because the mean of its divisors is an integer number (252914545).

Almost surely, 2^505829089 is an apocalyptic number.

It is an amenable number.

505829089 is a deficient number, since it is larger than the sum of its proper divisors (1).

505829089 is an equidigital number, since it uses as much as digits as its factorization.

505829089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 46.

The square root of 505829089 is about 22490.6444772043. The cubic root of 505829089 is about 796.7729843190.

The spelling of 505829089 in words is "five hundred five million, eight hundred twenty-nine thousand, eighty-nine".