513169265 has 16 divisors (see below), whose sum is σ = 718751232. Its totient is φ = 344399424.

The previous prime is 513169229. The next prime is 513169289. The reversal of 513169265 is 562961315.

It is a cyclic number.

It is not a de Polignac number, because 513169265 - 2⁶ = 513169201 is a prime.

It is a Duffinian number.

It is a Curzon 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, 154334 + ... + 157623.

It is an arithmetic number, because the mean of its divisors is an integer number (44921952).

Almost surely, 2^513169265 is an apocalyptic number.

It is an amenable number.

513169265 is a deficient number, since it is larger than the sum of its proper divisors (205581967).

513169265 is a wasteful number, since it uses less digits than its factorization.

513169265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312016.

The product of its digits is 48600, while the sum is 38.

The square root of 513169265 is about 22653.2396137948. The cubic root of 513169265 is about 800.6085291854.

The spelling of 513169265 in words is "five hundred thirteen million, one hundred sixty-nine thousand, two hundred sixty-five".