513725236 has 12 divisors (see below), whose sum is σ = 911335012. Its totient is φ = 253343808.

The previous prime is 513725231. The next prime is 513725239. The reversal of 513725236 is 632527315.

It can be written as a sum of positive squares in 2 ways, for example, as 365956900 + 147768336 = 19130^2 + 12156^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513725231) 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, 879375 + ... + 879958.

Almost surely, 2^513725236 is an apocalyptic number.

It is an amenable number.

513725236 is a deficient number, since it is larger than the sum of its proper divisors (397609776).

513725236 is a wasteful number, since it uses less digits than its factorization.

513725236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759410 (or 1759408 counting only the distinct ones).

The product of its digits is 37800, while the sum is 34.

The square root of 513725236 is about 22665.5076272295. The cubic root of 513725236 is about 800.8975530382.

The spelling of 513725236 in words is "five hundred thirteen million, seven hundred twenty-five thousand, two hundred thirty-six".