525328530 has 32 divisors (see below), whose sum is σ = 1327147200. Its totient is φ = 132714432.

The previous prime is 525328493. The next prime is 525328589. The reversal of 525328530 is 35823525.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 525328491 and 525328500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460245 + ... + 461384.

It is an arithmetic number, because the mean of its divisors is an integer number (41473350).

Almost surely, 2^525328530 is an apocalyptic number.

525328530 is an abundant number, since it is smaller than the sum of its proper divisors (801818670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525328530 is a wasteful number, since it uses less digits than its factorization.

525328530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921658.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 525328530 is about 22920.0464659215. The cubic root of 525328530 is about 806.8825608491.

The spelling of 525328530 in words is "five hundred twenty-five million, three hundred twenty-eight thousand, five hundred thirty".