528132505 has 8 divisors (see below), whose sum is σ = 640293192. Its totient is φ = 418149888.

The previous prime is 528132503. The next prime is 528132529. The reversal of 528132505 is 505231825.

It can be written as a sum of positive squares in 4 ways, for example, as 60016009 + 468116496 = 7747^2 + 21636^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 528132505 - 2¹ = 528132503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (528132503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543982 + ... + 544951.

It is an arithmetic number, because the mean of its divisors is an integer number (80036649).

Almost surely, 2^528132505 is an apocalyptic number.

It is an amenable number.

528132505 is a deficient number, since it is larger than the sum of its proper divisors (112160687).

528132505 is a wasteful number, since it uses less digits than its factorization.

528132505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089035.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 528132505 is about 22981.1336752563. The cubic root of 528132505 is about 808.3156101498.

The spelling of 528132505 in words is "five hundred twenty-eight million, one hundred thirty-two thousand, five hundred five".