528860561 has 2 divisors, whose sum is σ = 528860562. Its totient is φ = 528860560.

The previous prime is 528860539. The next prime is 528860567. The reversal of 528860561 is 165068825.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 502656400 + 26204161 = 22420^2 + 5119^2 .

It is a cyclic number.

It is not a de Polignac number, because 528860561 - 2¹⁸ = 528598417 is a prime.

It is not a weakly prime, because it can be changed into another prime (528860567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264430280 + 264430281.

It is an arithmetic number, because the mean of its divisors is an integer number (264430281).

Almost surely, 2^528860561 is an apocalyptic number.

It is an amenable number.

528860561 is a deficient number, since it is larger than the sum of its proper divisors (1).

528860561 is an equidigital number, since it uses as much as digits as its factorization.

528860561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 528860561 is about 22996.9685176112. The cubic root of 528860561 is about 808.6868735521.

The spelling of 528860561 in words is "five hundred twenty-eight million, eight hundred sixty thousand, five hundred sixty-one".