90522529 has 2 divisors, whose sum is σ = 90522530. Its totient is φ = 90522528.

The previous prime is 90522527. The next prime is 90522541. The reversal of 90522529 is 92522509.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76475025 + 14047504 = 8745^2 + 3748^2 .

It is a cyclic number.

It is not a de Polignac number, because 90522529 - 2¹ = 90522527 is a prime.

Together with 90522527, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 90522494 and 90522503.

It is not a weakly prime, because it can be changed into another prime (90522521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45261264 + 45261265.

It is an arithmetic number, because the mean of its divisors is an integer number (45261265).

Almost surely, 2^90522529 is an apocalyptic number.

It is an amenable number.

90522529 is a deficient number, since it is larger than the sum of its proper divisors (1).

90522529 is an equidigital number, since it uses as much as digits as its factorization.

90522529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 90522529 is about 9514.3328194887. The cubic root of 90522529 is about 449.0060845434.

The spelling of 90522529 in words is "ninety million, five hundred twenty-two thousand, five hundred twenty-nine".