52887891 has 32 divisors (see below), whose sum is σ = 83939328. Its totient is φ = 28984320.

The previous prime is 52887881. The next prime is 52887907. The reversal of 52887891 is 19878825.

It is not a de Polignac number, because 52887891 - 2¹⁵ = 52855123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52887891.

It is not an unprimeable number, because it can be changed into a prime (52887841) 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, 88891 + ... + 89483.

It is an arithmetic number, because the mean of its divisors is an integer number (2623104).

Almost surely, 2^52887891 is an apocalyptic number.

52887891 is a deficient number, since it is larger than the sum of its proper divisors (31051437).

52887891 is a wasteful number, since it uses less digits than its factorization.

52887891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771.

The product of its digits is 322560, while the sum is 48.

The square root of 52887891 is about 7272.4061355235. The cubic root of 52887891 is about 375.3635372390.

The spelling of 52887891 in words is "fifty-two million, eight hundred eighty-seven thousand, eight hundred ninety-one".