52552168891 has 4 divisors (see below), whose sum is σ = 53670300192. Its totient is φ = 51434037592.

The previous prime is 52552168871. The next prime is 52552168931. The reversal of 52552168891 is 19886125525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52552168891 - 2⁹ = 52552168379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52552168811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559065580 + ... + 559065673.

It is an arithmetic number, because the mean of its divisors is an integer number (13417575048).

Almost surely, 2^52552168891 is an apocalyptic number.

52552168891 is a deficient number, since it is larger than the sum of its proper divisors (1118131301).

52552168891 is a wasteful number, since it uses less digits than its factorization.

52552168891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118131300.

The product of its digits is 1728000, while the sum is 52.

The spelling of 52552168891 in words is "fifty-two billion, five hundred fifty-two million, one hundred sixty-eight thousand, eight hundred ninety-one".