528992081 has 2 divisors, whose sum is σ = 528992082. Its totient is φ = 528992080.

The previous prime is 528992047. The next prime is 528992143. The reversal of 528992081 is 180299825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 465869056 + 63123025 = 21584^2 + 7945^2 .

It is a cyclic number.

It is not a de Polignac number, because 528992081 - 2¹⁴ = 528975697 is a prime.

It is a super-2 number, since 2×528992081² = 559665243521421122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (528992021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264496040 + 264496041.

It is an arithmetic number, because the mean of its divisors is an integer number (264496041).

Almost surely, 2^528992081 is an apocalyptic number.

It is an amenable number.

528992081 is a deficient number, since it is larger than the sum of its proper divisors (1).

528992081 is an equidigital number, since it uses as much as digits as its factorization.

528992081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 528992081 is about 22999.8278471818. The cubic root of 528992081 is about 808.7539042530.

The spelling of 528992081 in words is "five hundred twenty-eight million, nine hundred ninety-two thousand, eighty-one".