99587251 has 2 divisors, whose sum is σ = 99587252. Its totient is φ = 99587250.

The previous prime is 99587249. The next prime is 99587273. The reversal of 99587251 is 15278599.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99587251 - 2¹ = 99587249 is a prime.

Together with 99587249, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99587051) 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, 49793625 + 49793626.

It is an arithmetic number, because the mean of its divisors is an integer number (49793626).

Almost surely, 2^99587251 is an apocalyptic number.

99587251 is a deficient number, since it is larger than the sum of its proper divisors (1).

99587251 is an equidigital number, since it uses as much as digits as its factorization.

99587251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 46.

The square root of 99587251 is about 9979.3412107213. The cubic root of 99587251 is about 463.5193990144.

The spelling of 99587251 in words is "ninety-nine million, five hundred eighty-seven thousand, two hundred fifty-one".