515560937405089 has 9 divisors (see below), whose sum is σ = 517435199888691. Its totient is φ = 513693439737240.

The previous prime is 515560937405077. The next prime is 515560937405167. The reversal of 515560937405089 is 980504739065515.

The square root of 515560937405089 is 22705967.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 88862013022225 + 426698924382864 = 9426665^2 + 20656692^2 .

It is a de Polignac number, because none of the positive numbers 2^k-515560937405089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (515560937405069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6289511874 + ... + 6289593844.

Almost surely, 2^{515560937405089} is an apocalyptic number.

515560937405089 is the 22705967-th square number.

515560937405089 is the 11352984-th centered octagonal number.

It is an amenable number.

515560937405089 is a deficient number, since it is larger than the sum of its proper divisors (1874262483602).

515560937405089 is an frugal number, since it uses more digits than its factorization.

515560937405089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164496 (or 82248 counting only the distinct ones).

The product of its (nonzero) digits is 204120000, while the sum is 67.

The spelling of 515560937405089 in words is "five hundred fifteen trillion, five hundred sixty billion, nine hundred thirty-seven million, four hundred five thousand, eighty-nine".