199505253 has 4 divisors (see below), whose sum is σ = 266007008. Its totient is φ = 133003500.

The previous prime is 199505233. The next prime is 199505269. The reversal of 199505253 is 352505991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 199505253 - 2¹² = 199501157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199505233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33250873 + ... + 33250878.

It is an arithmetic number, because the mean of its divisors is an integer number (66501752).

Almost surely, 2^199505253 is an apocalyptic number.

It is an amenable number.

199505253 is a deficient number, since it is larger than the sum of its proper divisors (66501755).

199505253 is an equidigital number, since it uses as much as digits as its factorization.

199505253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66501754.

The product of its (nonzero) digits is 60750, while the sum is 39.

The square root of 199505253 is about 14124.6328447857. The cubic root of 199505253 is about 584.3209331354.

The spelling of 199505253 in words is "one hundred ninety-nine million, five hundred five thousand, two hundred fifty-three".