513252645 has 16 divisors (see below), whose sum is σ = 822301632. Its totient is φ = 273368960.

The previous prime is 513252617. The next prime is 513252671. The reversal of 513252645 is 546252315.

It is not a de Polignac number, because 513252645 - 2⁹ = 513252133 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11067 + ... + 33896.

It is an arithmetic number, because the mean of its divisors is an integer number (51393852).

Almost surely, 2^513252645 is an apocalyptic number.

It is an amenable number.

513252645 is a deficient number, since it is larger than the sum of its proper divisors (309048987).

513252645 is a wasteful number, since it uses less digits than its factorization.

513252645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45732.

The product of its digits is 36000, while the sum is 33.

The square root of 513252645 is about 22655.0798939222. The cubic root of 513252645 is about 800.6518879292.

The spelling of 513252645 in words is "five hundred thirteen million, two hundred fifty-two thousand, six hundred forty-five".