517230449 has 2 divisors, whose sum is σ = 517230450. Its totient is φ = 517230448.

The previous prime is 517230433. The next prime is 517230473. The reversal of 517230449 is 944032715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 515290000 + 1940449 = 22700^2 + 1393^2 .

It is a cyclic number.

It is not a de Polignac number, because 517230449 - 2⁴ = 517230433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (517230499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258615224 + 258615225.

It is an arithmetic number, because the mean of its divisors is an integer number (258615225).

Almost surely, 2^517230449 is an apocalyptic number.

It is an amenable number.

517230449 is a deficient number, since it is larger than the sum of its proper divisors (1).

517230449 is an equidigital number, since it uses as much as digits as its factorization.

517230449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 517230449 is about 22742.7010049378. The cubic root of 517230449 is about 802.7149679508.

The spelling of 517230449 in words is "five hundred seventeen million, two hundred thirty thousand, four hundred forty-nine".