515350513 has 2 divisors, whose sum is σ = 515350514. Its totient is φ = 515350512.

The previous prime is 515350483. The next prime is 515350523. The reversal of 515350513 is 315053515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 387026929 + 128323584 = 19673^2 + 11328^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-515350513 is a prime.

It is not a weakly prime, because it can be changed into another prime (515350523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257675256 + 257675257.

It is an arithmetic number, because the mean of its divisors is an integer number (257675257).

Almost surely, 2^515350513 is an apocalyptic number.

It is an amenable number.

515350513 is a deficient number, since it is larger than the sum of its proper divisors (1).

515350513 is an equidigital number, since it uses as much as digits as its factorization.

515350513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5625, while the sum is 28.

The square root of 515350513 is about 22701.3328463331. The cubic root of 515350513 is about 801.7412660949.

The spelling of 515350513 in words is "five hundred fifteen million, three hundred fifty thousand, five hundred thirteen".