506544947 has 2 divisors, whose sum is σ = 506544948. Its totient is φ = 506544946.

The previous prime is 506544887. The next prime is 506544953. The reversal of 506544947 is 749445605.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506544947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 506544898 and 506544907.

It is not a weakly prime, because it can be changed into another prime (506544977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253272473 + 253272474.

It is an arithmetic number, because the mean of its divisors is an integer number (253272474).

Almost surely, 2^506544947 is an apocalyptic number.

506544947 is a deficient number, since it is larger than the sum of its proper divisors (1).

506544947 is an equidigital number, since it uses as much as digits as its factorization.

506544947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 506544947 is about 22506.5534233920. The cubic root of 506544947 is about 797.1486760760.

The spelling of 506544947 in words is "five hundred six million, five hundred forty-four thousand, nine hundred forty-seven".