98522509 has 2 divisors, whose sum is σ = 98522510. Its totient is φ = 98522508.

The previous prime is 98522471. The next prime is 98522513. The reversal of 98522509 is 90522589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66373609 + 32148900 = 8147^2 + 5670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98522509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98522519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49261254 + 49261255.

It is an arithmetic number, because the mean of its divisors is an integer number (49261255).

Almost surely, 2^98522509 is an apocalyptic number.

It is an amenable number.

98522509 is a deficient number, since it is larger than the sum of its proper divisors (1).

98522509 is an equidigital number, since it uses as much as digits as its factorization.

98522509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 98522509 is about 9925.8505429006. The cubic root of 98522509 is about 461.8615631271.

The spelling of 98522509 in words is "ninety-eight million, five hundred twenty-two thousand, five hundred nine".