99108551 has 2 divisors, whose sum is σ = 99108552. Its totient is φ = 99108550.

The previous prime is 99108539. The next prime is 99108619. The reversal of 99108551 is 15580199.

It is a weak prime.

It is an emirp because it is prime and its reverse (15580199) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99108551 is a 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 (99102551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49554275 + 49554276.

It is an arithmetic number, because the mean of its divisors is an integer number (49554276).

Almost surely, 2^99108551 is an apocalyptic number.

99108551 is a deficient number, since it is larger than the sum of its proper divisors (1).

99108551 is an equidigital number, since it uses as much as digits as its factorization.

99108551 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 38.

The square root of 99108551 is about 9955.3277695915. The cubic root of 99108551 is about 462.7755179411.

The spelling of 99108551 in words is "ninety-nine million, one hundred eight thousand, five hundred fifty-one".