52428289 has 8 divisors (see below), whose sum is σ = 56560680. Its totient is φ = 48412416.

The previous prime is 52428287. The next prime is 52428301. The reversal of 52428289 is 98282425.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8643600 + 43784689 = 2940^2 + 6617^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52428289 - 2¹ = 52428287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52428281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28194 + ... + 29995.

It is an arithmetic number, because the mean of its divisors is an integer number (7070085).

Almost surely, 2^52428289 is an apocalyptic number.

It is an amenable number.

52428289 is a deficient number, since it is larger than the sum of its proper divisors (4132391).

52428289 is a wasteful number, since it uses less digits than its factorization.

52428289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58259.

The product of its digits is 92160, while the sum is 40.

The square root of 52428289 is about 7240.7381529786. The cubic root of 52428289 is about 374.2730545261.

It can be divided in two parts, 5242 and 8289, that added together give a palindrome (13531).

The spelling of 52428289 in words is "fifty-two million, four hundred twenty-eight thousand, two hundred eighty-nine".