528000525531 has 24 divisors (see below), whose sum is σ = 813888751104. Its totient is φ = 328685817600.

The previous prime is 528000525499. The next prime is 528000525583. The reversal of 528000525531 is 135525000825.

528000525531 is a `hidden beast` number, since 5 + 2 + 80 + 0 + 0 + 525 + 53 + 1 = 666.

It is not a de Polignac number, because 528000525531 - 2⁵ = 528000525499 is a prime.

It is a super-2 number, since 2×528000525531² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (528000525331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13567120 + ... + 13605981.

It is an arithmetic number, because the mean of its divisors is an integer number (33912031296).

Almost surely, 2^528000525531 is an apocalyptic number.

528000525531 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

528000525531 is a deficient number, since it is larger than the sum of its proper divisors (285888225573).

528000525531 is a wasteful number, since it uses less digits than its factorization.

528000525531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27173251 (or 27173248 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 528000525531 in words is "five hundred twenty-eight billion, five hundred twenty-five thousand, five hundred thirty-one".