99850559 has 2 divisors, whose sum is σ = 99850560. Its totient is φ = 99850558.

The previous prime is 99850489. The next prime is 99850589. The reversal of 99850559 is 95505899.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99850559 is a prime.

It is a super-2 number, since 2×99850559² = 19940268265224962, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99850589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49925279 + 49925280.

It is an arithmetic number, because the mean of its divisors is an integer number (49925280).

Almost surely, 2^99850559 is an apocalyptic number.

99850559 is a deficient number, since it is larger than the sum of its proper divisors (1).

99850559 is an equidigital number, since it uses as much as digits as its factorization.

99850559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729000, while the sum is 50.

The square root of 99850559 is about 9992.5251563356. The cubic root of 99850559 is about 463.9275535301.

The spelling of 99850559 in words is "ninety-nine million, eight hundred fifty thousand, five hundred fifty-nine".