528958561 has 2 divisors, whose sum is σ = 528958562. Its totient is φ = 528958560.

The previous prime is 528958559. The next prime is 528958601. The reversal of 528958561 is 165859825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 414896161 + 114062400 = 20369^2 + 10680^2 .

It is a cyclic number.

It is not a de Polignac number, because 528958561 - 2¹ = 528958559 is a prime.

Together with 528958559, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (528958861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264479280 + 264479281.

It is an arithmetic number, because the mean of its divisors is an integer number (264479281).

Almost surely, 2^528958561 is an apocalyptic number.

It is an amenable number.

528958561 is a deficient number, since it is larger than the sum of its proper divisors (1).

528958561 is an equidigital number, since it uses as much as digits as its factorization.

528958561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864000, while the sum is 49.

The square root of 528958561 is about 22999.0991345313. The cubic root of 528958561 is about 808.7368214494.

The spelling of 528958561 in words is "five hundred twenty-eight million, nine hundred fifty-eight thousand, five hundred sixty-one".