505175947 has 2 divisors, whose sum is σ = 505175948. Its totient is φ = 505175946.

The previous prime is 505175929. The next prime is 505175977. The reversal of 505175947 is 749571505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505175947 - 2¹⁹ = 504651659 is a prime.

It is not a weakly prime, because it can be changed into another prime (505175977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252587973 + 252587974.

It is an arithmetic number, because the mean of its divisors is an integer number (252587974).

Almost surely, 2^505175947 is an apocalyptic number.

505175947 is a deficient number, since it is larger than the sum of its proper divisors (1).

505175947 is an equidigital number, since it uses as much as digits as its factorization.

505175947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 220500, while the sum is 43.

The square root of 505175947 is about 22476.1194826865. The cubic root of 505175947 is about 796.4298973879.

The spelling of 505175947 in words is "five hundred five million, one hundred seventy-five thousand, nine hundred forty-seven".