52228891 has 32 divisors (see below), whose sum is σ = 66124800. Its totient is φ = 40538880.

The previous prime is 52228889. The next prime is 52228919. The reversal of 52228891 is 19882225.

It is a cyclic number.

It is not a de Polignac number, because 52228891 - 2¹ = 52228889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52228891.

It is not an unprimeable number, because it can be changed into a prime (52228861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127495 + ... + 127903.

It is an arithmetic number, because the mean of its divisors is an integer number (2066400).

Almost surely, 2^52228891 is an apocalyptic number.

52228891 is a deficient number, since it is larger than the sum of its proper divisors (13895909).

52228891 is a wasteful number, since it uses less digits than its factorization.

52228891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499.

The product of its digits is 23040, while the sum is 37.

The square root of 52228891 is about 7226.9558598348. The cubic root of 52228891 is about 373.7979667970.

The spelling of 52228891 in words is "fifty-two million, two hundred twenty-eight thousand, eight hundred ninety-one".