52628289 has 8 divisors (see below), whose sum is σ = 80195520. Its totient is φ = 30073296.

The previous prime is 52628287. The next prime is 52628321. The reversal of 52628289 is 98282625.

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

It is not a de Polignac number, because 52628289 - 2¹ = 52628287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52628289.

It is not an unprimeable number, because it can be changed into a prime (52628287) 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, 1253034 + ... + 1253075.

It is an arithmetic number, because the mean of its divisors is an integer number (10024440).

Almost surely, 2^52628289 is an apocalyptic number.

It is an amenable number.

52628289 is a deficient number, since it is larger than the sum of its proper divisors (27567231).

52628289 is a wasteful number, since it uses less digits than its factorization.

52628289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506119.

The product of its digits is 138240, while the sum is 42.

The square root of 52628289 is about 7254.5357535820. The cubic root of 52628289 is about 374.7483680770.

The spelling of 52628289 in words is "fifty-two million, six hundred twenty-eight thousand, two hundred eighty-nine".