506543447 has 2 divisors, whose sum is σ = 506543448. Its totient is φ = 506543446.

The previous prime is 506543413. The next prime is 506543449. The reversal of 506543447 is 744345605.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 506543447 - 2¹⁰ = 506542423 is a prime.

Together with 506543449, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 506543447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506543449) 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, 253271723 + 253271724.

It is an arithmetic number, because the mean of its divisors is an integer number (253271724).

Almost surely, 2^506543447 is an apocalyptic number.

506543447 is a deficient number, since it is larger than the sum of its proper divisors (1).

506543447 is an equidigital number, since it uses as much as digits as its factorization.

506543447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 38.

The square root of 506543447 is about 22506.5200997400. The cubic root of 506543447 is about 797.1478892263.

The spelling of 506543447 in words is "five hundred six million, five hundred forty-three thousand, four hundred forty-seven".