528027505 has 8 divisors (see below), whose sum is σ = 655482600. Its totient is φ = 407855616.

The previous prime is 528027503. The next prime is 528027509. The reversal of 528027505 is 505720825.

528027505 = 16248² + 16249².

It can be written as a sum of positive squares in 4 ways, for example, as 202549824 + 325477681 = 14232^2 + 18041^2 .

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 528027505 - 2¹ = 528027503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (528027503) 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, 1820640 + ... + 1820929.

It is an arithmetic number, because the mean of its divisors is an integer number (81935325).

Almost surely, 2^528027505 is an apocalyptic number.

528027505 is the 16249-th centered square number.

It is an amenable number.

528027505 is a deficient number, since it is larger than the sum of its proper divisors (127455095).

528027505 is a wasteful number, since it uses less digits than its factorization.

528027505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3641603.

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 528027505 is about 22978.8490790988. The cubic root of 528027505 is about 808.2620385154.

The spelling of 528027505 in words is "five hundred twenty-eight million, twenty-seven thousand, five hundred five".