99926251 has 2 divisors, whose sum is σ = 99926252. Its totient is φ = 99926250.

The previous prime is 99926243. The next prime is 99926311. The reversal of 99926251 is 15262999.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (15262999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99926251 - 2³ = 99926243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99926198 and 99926207.

It is not a weakly prime, because it can be changed into another prime (99926851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49963125 + 49963126.

It is an arithmetic number, because the mean of its divisors is an integer number (49963126).

Almost surely, 2^99926251 is an apocalyptic number.

99926251 is a deficient number, since it is larger than the sum of its proper divisors (1).

99926251 is an equidigital number, since it uses as much as digits as its factorization.

99926251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 43.

The square root of 99926251 is about 9996.3118698848. The cubic root of 99926251 is about 464.0447511213.

The spelling of 99926251 in words is "ninety-nine million, nine hundred twenty-six thousand, two hundred fifty-one".