506591473 has 2 divisors, whose sum is σ = 506591474. Its totient is φ = 506591472.

The previous prime is 506591467. The next prime is 506591549. The reversal of 506591473 is 374195605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 271030369 + 235561104 = 16463^2 + 15348^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506591473 is a prime.

It is not a weakly prime, because it can be changed into another prime (506591573) 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, 253295736 + 253295737.

It is an arithmetic number, because the mean of its divisors is an integer number (253295737).

Almost surely, 2^506591473 is an apocalyptic number.

It is an amenable number.

506591473 is a deficient number, since it is larger than the sum of its proper divisors (1).

506591473 is an equidigital number, since it uses as much as digits as its factorization.

506591473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 506591473 is about 22507.5870097174. The cubic root of 506591473 is about 797.1730812836.

The spelling of 506591473 in words is "five hundred six million, five hundred ninety-one thousand, four hundred seventy-three".