506503008139 has 2 divisors, whose sum is σ = 506503008140. Its totient is φ = 506503008138.

The previous prime is 506503008133. The next prime is 506503008173. The reversal of 506503008139 is 931800305605.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 506503008139 - 2³ = 506503008131 is a prime.

It is not a weakly prime, because it can be changed into another prime (506503008131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253251504069 + 253251504070.

It is an arithmetic number, because the mean of its divisors is an integer number (253251504070).

Almost surely, 2^506503008139 is an apocalyptic number.

506503008139 is a deficient number, since it is larger than the sum of its proper divisors (1).

506503008139 is an equidigital number, since it uses as much as digits as its factorization.

506503008139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 506503008139 in words is "five hundred six billion, five hundred three million, eight thousand, one hundred thirty-nine".