52513215345 has 12 divisors (see below), whose sum is σ = 91022906676. Its totient is φ = 28007048160.

The previous prime is 52513215331. The next prime is 52513215347. The reversal of 52513215345 is 54351231525.

52513215345 is a `hidden beast` number, since 52 + 51 + 3 + 21 + 534 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12702191616 + 39811023729 = 112704^2 + 199527^2 .

It is not a de Polignac number, because 52513215345 - 2⁹ = 52513214833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52513215347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 583480126 + ... + 583480215.

It is an arithmetic number, because the mean of its divisors is an integer number (7585242223).

Almost surely, 2^52513215345 is an apocalyptic number.

It is an amenable number.

52513215345 is a deficient number, since it is larger than the sum of its proper divisors (38509691331).

52513215345 is a wasteful number, since it uses less digits than its factorization.

52513215345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166960352 (or 1166960349 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The spelling of 52513215345 in words is "fifty-two billion, five hundred thirteen million, two hundred fifteen thousand, three hundred forty-five".