528501601 has 4 divisors (see below), whose sum is σ = 528912900. Its totient is φ = 528090304.

The previous prime is 528501557. The next prime is 528501619. The reversal of 528501601 is 106105825.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 440160400 + 88341201 = 20980^2 + 9399^2 .

It is a cyclic number.

It is not a de Polignac number, because 528501601 - 2¹⁷ = 528370529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 528501601.

It is not an unprimeable number, because it can be changed into a prime (528501641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203716 + ... + 206293.

It is an arithmetic number, because the mean of its divisors is an integer number (132228225).

Almost surely, 2^528501601 is an apocalyptic number.

It is an amenable number.

528501601 is a deficient number, since it is larger than the sum of its proper divisors (411299).

528501601 is a wasteful number, since it uses less digits than its factorization.

528501601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411298.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 528501601 is about 22989.1626859266. The cubic root of 528501601 is about 808.5038688291.

The spelling of 528501601 in words is "five hundred twenty-eight million, five hundred one thousand, six hundred one".