500015513 has 2 divisors, whose sum is σ = 500015514. Its totient is φ = 500015512.

The previous prime is 500015507. The next prime is 500015629. The reversal of 500015513 is 315510005.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411805849 + 88209664 = 20293^2 + 9392^2 .

It is a cyclic number.

It is not a de Polignac number, because 500015513 - 2⁴ = 500015497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (500015413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250007756 + 250007757.

It is an arithmetic number, because the mean of its divisors is an integer number (250007757).

Almost surely, 2^500015513 is an apocalyptic number.

It is an amenable number.

500015513 is a deficient number, since it is larger than the sum of its proper divisors (1).

500015513 is an equidigital number, since it uses as much as digits as its factorization.

500015513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 500015513 is about 22361.0266535327. The cubic root of 500015513 is about 793.7087343500.

Adding to 500015513 its reverse (315510005), we get a palindrome (815525518).

The spelling of 500015513 in words is "five hundred million, fifteen thousand, five hundred thirteen".