609500513 has 2 divisors, whose sum is σ = 609500514. Its totient is φ = 609500512.

The previous prime is 609500509. The next prime is 609500537. The reversal of 609500513 is 315005906.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 504990784 + 104509729 = 22472^2 + 10223^2 .

It is a cyclic number.

It is not a de Polignac number, because 609500513 - 2² = 609500509 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 (609500413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304750256 + 304750257.

It is an arithmetic number, because the mean of its divisors is an integer number (304750257).

Almost surely, 2^609500513 is an apocalyptic number.

It is an amenable number.

609500513 is a deficient number, since it is larger than the sum of its proper divisors (1).

609500513 is an equidigital number, since it uses as much as digits as its factorization.

609500513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 609500513 is about 24688.0641808952. The cubic root of 609500513 is about 847.8610640906.

The spelling of 609500513 in words is "six hundred nine million, five hundred thousand, five hundred thirteen".