505098329 has 2 divisors, whose sum is σ = 505098330. Its totient is φ = 505098328.

The previous prime is 505098317. The next prime is 505098367. The reversal of 505098329 is 923890505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 377408329 + 127690000 = 19427^2 + 11300^2 .

It is a cyclic number.

It is not a de Polignac number, because 505098329 - 2²⁰ = 504049753 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (505098379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252549164 + 252549165.

It is an arithmetic number, because the mean of its divisors is an integer number (252549165).

Almost surely, 2^505098329 is an apocalyptic number.

It is an amenable number.

505098329 is a deficient number, since it is larger than the sum of its proper divisors (1).

505098329 is an equidigital number, since it uses as much as digits as its factorization.

505098329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 505098329 is about 22474.3927392933. The cubic root of 505098329 is about 796.3891060146.

The spelling of 505098329 in words is "five hundred five million, ninety-eight thousand, three hundred twenty-nine".