528117223 has 4 divisors (see below), whose sum is σ = 559182960. Its totient is φ = 497051488.

The previous prime is 528117221. The next prime is 528117251. The reversal of 528117223 is 322711825.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 528117223 - 2¹ = 528117221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528117221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15532843 + ... + 15532876.

It is an arithmetic number, because the mean of its divisors is an integer number (139795740).

Almost surely, 2^528117223 is an apocalyptic number.

528117223 is a deficient number, since it is larger than the sum of its proper divisors (31065737).

528117223 is a wasteful number, since it uses less digits than its factorization.

528117223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31065736.

The product of its digits is 6720, while the sum is 31.

The square root of 528117223 is about 22980.8011827264. The cubic root of 528117223 is about 808.3078136226.

The spelling of 528117223 in words is "five hundred twenty-eight million, one hundred seventeen thousand, two hundred twenty-three".