9975528811 has 2 divisors, whose sum is σ = 9975528812. Its totient is φ = 9975528810.

The previous prime is 9975528809. The next prime is 9975528833. The reversal of 9975528811 is 1188255799.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9975528811 - 2¹ = 9975528809 is a prime.

It is a super-2 number, since 2×9975528811² (a number of 21 digits) contains 22 as substring.

Together with 9975528809, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9975528841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4987764405 + 4987764406.

It is an arithmetic number, because the mean of its divisors is an integer number (4987764406).

Almost surely, 2^9975528811 is an apocalyptic number.

9975528811 is a deficient number, since it is larger than the sum of its proper divisors (1).

9975528811 is an equidigital number, since it uses as much as digits as its factorization.

9975528811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 55.

The square root of 9975528811 is about 99877.5691083839. The cubic root of 9975528811 is about 2152.6758686194.

The spelling of 9975528811 in words is "nine billion, nine hundred seventy-five million, five hundred twenty-eight thousand, eight hundred eleven".