528716617825 has 72 divisors (see below), whose sum is σ = 731600952320. Its totient is φ = 378710640000.

The previous prime is 528716617799. The next prime is 528716617829.

528716617825 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 528716617825 - 2¹³ = 528716609633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 528716617825.

It is not an unprimeable number, because it can be changed into a prime (528716617829) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 53395375 + ... + 53405275.

Almost surely, 2^528716617825 is an apocalyptic number.

528716617825 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

528716617825 is a deficient number, since it is larger than the sum of its proper divisors (202884334495).

528716617825 is a wasteful number, since it uses less digits than its factorization.

528716617825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10199 (or 10183 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 58.

The spelling of 528716617825 in words is "five hundred twenty-eight billion, seven hundred sixteen million, six hundred seventeen thousand, eight hundred twenty-five".