528663733 has 16 divisors (see below), whose sum is σ = 615502720. Its totient is φ = 449810496.

The previous prime is 528663721. The next prime is 528663757. The reversal of 528663733 is 337366825.

It is a cyclic number.

It is not a de Polignac number, because 528663733 - 2¹⁷ = 528532661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 528663733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528663713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19785 + ... + 38062.

It is an arithmetic number, because the mean of its divisors is an integer number (38468920).

Almost surely, 2^528663733 is an apocalyptic number.

It is an amenable number.

528663733 is a deficient number, since it is larger than the sum of its proper divisors (86838987).

528663733 is a wasteful number, since it uses less digits than its factorization.

528663733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57916.

The product of its digits is 544320, while the sum is 43.

The square root of 528663733 is about 22992.6886857540. The cubic root of 528663733 is about 808.5865371041.

The spelling of 528663733 in words is "five hundred twenty-eight million, six hundred sixty-three thousand, seven hundred thirty-three".