506539447 has 2 divisors, whose sum is σ = 506539448. Its totient is φ = 506539446.

The previous prime is 506539417. The next prime is 506539457. The reversal of 506539447 is 744935605.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 506539447 - 2¹¹ = 506537399 is a prime.

It is a super-2 number, since 2×506539447² = 513164422734131618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506539417) 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, 253269723 + 253269724.

It is an arithmetic number, because the mean of its divisors is an integer number (253269724).

Almost surely, 2^506539447 is an apocalyptic number.

506539447 is a deficient number, since it is larger than the sum of its proper divisors (1).

506539447 is an equidigital number, since it uses as much as digits as its factorization.

506539447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 506539447 is about 22506.4312364266. The cubic root of 506539447 is about 797.1457909529.

The spelling of 506539447 in words is "five hundred six million, five hundred thirty-nine thousand, four hundred forty-seven".