99520559 has 2 divisors, whose sum is σ = 99520560. Its totient is φ = 99520558.

The previous prime is 99520543. The next prime is 99520579. The reversal of 99520559 is 95502599.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99520559 - 2⁴ = 99520543 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99520529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49760279 + 49760280.

It is an arithmetic number, because the mean of its divisors is an integer number (49760280).

Almost surely, 2^99520559 is an apocalyptic number.

99520559 is a deficient number, since it is larger than the sum of its proper divisors (1).

99520559 is an equidigital number, since it uses as much as digits as its factorization.

99520559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 182250, while the sum is 44.

The square root of 99520559 is about 9975.9991479551. Note that the first 3 decimals coincide. The cubic root of 99520559 is about 463.4159053822.

The spelling of 99520559 in words is "ninety-nine million, five hundred twenty thousand, five hundred fifty-nine".