528225906439 has 24 divisors (see below), whose sum is σ = 684961593344. Its totient is φ = 398327014800.

The previous prime is 528225906407. The next prime is 528225906473. The reversal of 528225906439 is 934609522825.

It is not a de Polignac number, because 528225906439 - 2⁵ = 528225906407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 528225906439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528225906539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10032507 + ... + 10085020.

Almost surely, 2^528225906439 is an apocalyptic number.

528225906439 is a deficient number, since it is larger than the sum of its proper divisors (156735686905).

528225906439 is a wasteful number, since it uses less digits than its factorization.

528225906439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20117587 (or 20117576 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 55.

The spelling of 528225906439 in words is "five hundred twenty-eight billion, two hundred twenty-five million, nine hundred six thousand, four hundred thirty-nine".