510555000509 has 2 divisors, whose sum is σ = 510555000510. Its totient is φ = 510555000508.

The previous prime is 510555000499. The next prime is 510555000587. The reversal of 510555000509 is 905000555015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 481178068900 + 29376931609 = 693670^2 + 171397^2 .

It is a cyclic number.

It is not a de Polignac number, because 510555000509 - 2⁸ = 510555000253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (510555000589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255277500254 + 255277500255.

It is an arithmetic number, because the mean of its divisors is an integer number (255277500255).

Almost surely, 2^510555000509 is an apocalyptic number.

It is an amenable number.

510555000509 is a deficient number, since it is larger than the sum of its proper divisors (1).

510555000509 is an equidigital number, since it uses as much as digits as its factorization.

510555000509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28125, while the sum is 35.

The spelling of 510555000509 in words is "five hundred ten billion, five hundred fifty-five million, five hundred nine", and thus it is an aban number.