513565565315 has 12 divisors (see below), whose sum is σ = 677397225792. Its totient is φ = 373502228880.

The previous prime is 513565565221. The next prime is 513565565321.

513565565315 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 513565565315 - 2¹² = 513565561219 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 424433747 + ... + 424434956.

It is an arithmetic number, because the mean of its divisors is an integer number (56449768816).

Almost surely, 2^513565565315 is an apocalyptic number.

513565565315 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

513565565315 is a deficient number, since it is larger than the sum of its proper divisors (163831660477).

513565565315 is a wasteful number, since it uses less digits than its factorization.

513565565315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848868730 (or 848868719 counting only the distinct ones).

The product of its digits is 5062500, while the sum is 50.

The spelling of 513565565315 in words is "five hundred thirteen billion, five hundred sixty-five million, five hundred sixty-five thousand, three hundred fifteen".