513152506 has 8 divisors (see below), whose sum is σ = 796271220. Its totient is φ = 247728768.

The previous prime is 513152503. The next prime is 513152537. The reversal of 513152506 is 605251315.

It can be written as a sum of positive squares in 2 ways, for example, as 502163281 + 10989225 = 22409^2 + 3315^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (513152501) 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, 4423671 + ... + 4423786.

Almost surely, 2^513152506 is an apocalyptic number.

513152506 is a deficient number, since it is larger than the sum of its proper divisors (283118714).

513152506 is a wasteful number, since it uses less digits than its factorization.

513152506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8847488.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 513152506 is about 22652.8697078317. The cubic root of 513152506 is about 800.5998137087.

The spelling of 513152506 in words is "five hundred thirteen million, one hundred fifty-two thousand, five hundred six".