98555251 has 2 divisors, whose sum is σ = 98555252. Its totient is φ = 98555250.

The previous prime is 98555243. The next prime is 98555291. The reversal of 98555251 is 15255589.

It is an a-pointer prime, because the next prime (98555291) can be obtained adding 98555251 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98555251 - 2³ = 98555243 is a prime.

It is a super-3 number, since 3×98555251³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (98555221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49277625 + 49277626.

It is an arithmetic number, because the mean of its divisors is an integer number (49277626).

Almost surely, 2^98555251 is an apocalyptic number.

98555251 is a deficient number, since it is larger than the sum of its proper divisors (1).

98555251 is an equidigital number, since it uses as much as digits as its factorization.

98555251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90000, while the sum is 40.

The square root of 98555251 is about 9927.4997355830. The cubic root of 98555251 is about 461.9127209676.

The spelling of 98555251 in words is "ninety-eight million, five hundred fifty-five thousand, two hundred fifty-one".