528485511991 has 2 divisors, whose sum is σ = 528485511992. Its totient is φ = 528485511990.

The previous prime is 528485511941. The next prime is 528485512001. The reversal of 528485511991 is 199115584825.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 528485511991 - 2²⁵ = 528451957559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (528485511941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264242755995 + 264242755996.

It is an arithmetic number, because the mean of its divisors is an integer number (264242755996).

Almost surely, 2^528485511991 is an apocalyptic number.

528485511991 is a deficient number, since it is larger than the sum of its proper divisors (1).

528485511991 is an equidigital number, since it uses as much as digits as its factorization.

528485511991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184000, while the sum is 58.

The spelling of 528485511991 in words is "five hundred twenty-eight billion, four hundred eighty-five million, five hundred eleven thousand, nine hundred ninety-one".