199525211 has 2 divisors, whose sum is σ = 199525212. Its totient is φ = 199525210.

The previous prime is 199525153. The next prime is 199525219. The reversal of 199525211 is 112525991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199525211 - 2¹⁸ = 199263067 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (199525219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99762605 + 99762606.

It is an arithmetic number, because the mean of its divisors is an integer number (99762606).

Almost surely, 2^199525211 is an apocalyptic number.

199525211 is a deficient number, since it is larger than the sum of its proper divisors (1).

199525211 is an equidigital number, since it uses as much as digits as its factorization.

199525211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 35.

The square root of 199525211 is about 14125.3393233579. The cubic root of 199525211 is about 584.3404171476.

The spelling of 199525211 in words is "one hundred ninety-nine million, five hundred twenty-five thousand, two hundred eleven".