512731564 has 12 divisors (see below), whose sum is σ = 899589600. Its totient is φ = 255705968.

The previous prime is 512731561. The next prime is 512731573. The reversal of 512731564 is 465137215.

It is not an unprimeable number, because it can be changed into a prime (512731561) 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 in 3 ways as a sum of consecutive naturals, for example, 163204 + ... + 166315.

It is an arithmetic number, because the mean of its divisors is an integer number (74965800).

Almost surely, 2^512731564 is an apocalyptic number.

It is an amenable number.

512731564 is a deficient number, since it is larger than the sum of its proper divisors (386858036).

512731564 is a wasteful number, since it uses less digits than its factorization.

512731564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329912 (or 329910 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 512731564 is about 22643.5766609429. The cubic root of 512731564 is about 800.3808415875.

Adding to 512731564 its reverse (465137215), we get a palindrome (977868779).

The spelling of 512731564 in words is "five hundred twelve million, seven hundred thirty-one thousand, five hundred sixty-four".