506005256 has 8 divisors (see below), whose sum is σ = 948759870. Its totient is φ = 253002624.

The previous prime is 506005249. The next prime is 506005259. The reversal of 506005256 is 652500605.

It can be written as a sum of positive squares in only one way, i.e., 486908356 + 19096900 = 22066^2 + 4370^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (506005259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31625321 + ... + 31625336.

Almost surely, 2^506005256 is an apocalyptic number.

It is an amenable number.

506005256 is a deficient number, since it is larger than the sum of its proper divisors (442754614).

506005256 is a wasteful number, since it uses less digits than its factorization.

506005256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63250663 (or 63250659 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 506005256 is about 22494.5605869508. The cubic root of 506005256 is about 796.8654719578.

The spelling of 506005256 in words is "five hundred six million, five thousand, two hundred fifty-six".