505709003 has 2 divisors, whose sum is σ = 505709004. Its totient is φ = 505709002.

The previous prime is 505708993. The next prime is 505709051. The reversal of 505709003 is 300907505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505709003 - 2⁸ = 505708747 is a prime.

It is not a weakly prime, because it can be changed into another prime (505709053) 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, 252854501 + 252854502.

It is an arithmetic number, because the mean of its divisors is an integer number (252854502).

Almost surely, 2^505709003 is an apocalyptic number.

505709003 is a deficient number, since it is larger than the sum of its proper divisors (1).

505709003 is an equidigital number, since it uses as much as digits as its factorization.

505709003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4725, while the sum is 29.

The square root of 505709003 is about 22487.9746309000. The cubic root of 505709003 is about 796.7099268849.

The spelling of 505709003 in words is "five hundred five million, seven hundred nine thousand, three".