52537517668 has 6 divisors (see below), whose sum is σ = 91940655926. Its totient is φ = 26268758832.

The previous prime is 52537517663. The next prime is 52537517713. The reversal of 52537517668 is 86671573525.

It can be written as a sum of positive squares in only one way, i.e., 52147376164 + 390141504 = 228358^2 + 19752^2 .

It is not an unprimeable number, because it can be changed into a prime (52537517663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6567189705 + ... + 6567189712.

Almost surely, 2^52537517668 is an apocalyptic number.

It is an amenable number.

52537517668 is a deficient number, since it is larger than the sum of its proper divisors (39403138258).

52537517668 is a wasteful number, since it uses less digits than its factorization.

52537517668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13134379421 (or 13134379419 counting only the distinct ones).

The product of its digits is 10584000, while the sum is 55.

The spelling of 52537517668 in words is "fifty-two billion, five hundred thirty-seven million, five hundred seventeen thousand, six hundred sixty-eight".