52889281 has 2 divisors, whose sum is σ = 52889282. Its totient is φ = 52889280.

The previous prime is 52889279. The next prime is 52889299. The reversal of 52889281 is 18298825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38638656 + 14250625 = 6216^2 + 3775^2 .

It is a cyclic number.

It is not a de Polignac number, because 52889281 - 2¹ = 52889279 is a prime.

It is a super-2 number, since 2×52889281² = 5594552089393922, which contains 22 as substring.

Together with 52889279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (52889251) 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 as a sum of consecutive naturals, namely, 26444640 + 26444641.

It is an arithmetic number, because the mean of its divisors is an integer number (26444641).

Almost surely, 2^52889281 is an apocalyptic number.

It is an amenable number.

52889281 is a deficient number, since it is larger than the sum of its proper divisors (1).

52889281 is an equidigital number, since it uses as much as digits as its factorization.

52889281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 43.

The square root of 52889281 is about 7272.5017016155. The cubic root of 52889281 is about 375.3668256461.

The spelling of 52889281 in words is "fifty-two million, eight hundred eighty-nine thousand, two hundred eighty-one".