199950251 has 2 divisors, whose sum is σ = 199950252. Its totient is φ = 199950250.

The previous prime is 199950239. The next prime is 199950263. The reversal of 199950251 is 152059991.

It is a balanced prime because it is at equal distance from previous prime (199950239) and next prime (199950263).

It is a cyclic number.

It is not a de Polignac number, because 199950251 - 2⁶ = 199950187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 199950199 and 199950208.

It is not a weakly prime, because it can be changed into another prime (199950211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99975125 + 99975126.

It is an arithmetic number, because the mean of its divisors is an integer number (99975126).

Almost surely, 2^199950251 is an apocalyptic number.

199950251 is a deficient number, since it is larger than the sum of its proper divisors (1).

199950251 is an equidigital number, since it uses as much as digits as its factorization.

199950251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450, while the sum is 41.

The square root of 199950251 is about 14140.3766215755. The cubic root of 199950251 is about 584.7550546354.

The spelling of 199950251 in words is "one hundred ninety-nine million, nine hundred fifty thousand, two hundred fifty-one".