990522529 has 2 divisors, whose sum is σ = 990522530. Its totient is φ = 990522528.

The previous prime is 990522517. The next prime is 990522541. The reversal of 990522529 is 925225099.

It is a balanced prime because it is at equal distance from previous prime (990522517) and next prime (990522541).

It can be written as a sum of positive squares in only one way, i.e., 925558929 + 64963600 = 30423^2 + 8060^2 .

It is a cyclic number.

It is not a de Polignac number, because 990522529 - 2¹¹ = 990520481 is a prime.

It is a super-2 number, since 2×990522529² = 1962269760913111682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (990528529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495261264 + 495261265.

It is an arithmetic number, because the mean of its divisors is an integer number (495261265).

Almost surely, 2^990522529 is an apocalyptic number.

It is an amenable number.

990522529 is a deficient number, since it is larger than the sum of its proper divisors (1).

990522529 is an equidigital number, since it uses as much as digits as its factorization.

990522529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 43.

The square root of 990522529 is about 31472.5678806163. The cubic root of 990522529 is about 996.8308098440.

The spelling of 990522529 in words is "nine hundred ninety million, five hundred twenty-two thousand, five hundred twenty-nine".