520346249 has 2 divisors, whose sum is σ = 520346250. Its totient is φ = 520346248.

The previous prime is 520346237. The next prime is 520346303. The reversal of 520346249 is 942643025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 358420624 + 161925625 = 18932^2 + 12725^2 .

It is a cyclic number.

It is not a de Polignac number, because 520346249 - 2⁸ = 520345993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (520316249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260173124 + 260173125.

It is an arithmetic number, because the mean of its divisors is an integer number (260173125).

Almost surely, 2^520346249 is an apocalyptic number.

It is an amenable number.

520346249 is a deficient number, since it is larger than the sum of its proper divisors (1).

520346249 is an equidigital number, since it uses as much as digits as its factorization.

520346249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 520346249 is about 22811.0992501458. The cubic root of 520346249 is about 804.3235957420.

The spelling of 520346249 in words is "five hundred twenty million, three hundred forty-six thousand, two hundred forty-nine".