99750251 has 2 divisors, whose sum is σ = 99750252. Its totient is φ = 99750250.

The previous prime is 99750229. The next prime is 99750263. The reversal of 99750251 is 15205799.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99750251 - 2¹⁴ = 99733867 is a prime.

It is a super-2 number, since 2×99750251² = 19900225149126002, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99720251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49875125 + 49875126.

It is an arithmetic number, because the mean of its divisors is an integer number (49875126).

Almost surely, 2^99750251 is an apocalyptic number.

99750251 is a deficient number, since it is larger than the sum of its proper divisors (1).

99750251 is an equidigital number, since it uses as much as digits as its factorization.

99750251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28350, while the sum is 38.

The square root of 99750251 is about 9987.5047434282. The cubic root of 99750251 is about 463.7721505054.

It can be divided in two parts, 99750 and 251, that added together give a palindrome (100001).

The spelling of 99750251 in words is "ninety-nine million, seven hundred fifty thousand, two hundred fifty-one".