528561797 has 2 divisors, whose sum is σ = 528561798. Its totient is φ = 528561796.

The previous prime is 528561751. The next prime is 528561799. The reversal of 528561797 is 797165825.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 524684836 + 3876961 = 22906^2 + 1969^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-528561797 is a prime.

Together with 528561799, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (528561799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264280898 + 264280899.

It is an arithmetic number, because the mean of its divisors is an integer number (264280899).

Almost surely, 2^528561797 is an apocalyptic number.

It is an amenable number.

528561797 is a deficient number, since it is larger than the sum of its proper divisors (1).

528561797 is an equidigital number, since it uses as much as digits as its factorization.

528561797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058400, while the sum is 50.

The square root of 528561797 is about 22990.4718742352. The cubic root of 528561797 is about 808.5345636912.

The spelling of 528561797 in words is "five hundred twenty-eight million, five hundred sixty-one thousand, seven hundred ninety-seven".