52068891 has 32 divisors (see below), whose sum is σ = 82690560. Its totient is φ = 28514304.

The previous prime is 52068853. The next prime is 52068959. The reversal of 52068891 is 19886025.

It is not a de Polignac number, because 52068891 - 2¹⁰ = 52067867 is a prime.

It is a super-2 number, since 2×52068891² = 5422338819939762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52068851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117316 + ... + 117758.

It is an arithmetic number, because the mean of its divisors is an integer number (2584080).

Almost surely, 2^52068891 is an apocalyptic number.

52068891 is a deficient number, since it is larger than the sum of its proper divisors (30621669).

52068891 is a wasteful number, since it uses less digits than its factorization.

52068891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 52068891 is about 7215.8777012918. The cubic root of 52068891 is about 373.4158739868.

The spelling of 52068891 in words is "fifty-two million, sixty-eight thousand, eight hundred ninety-one".