199695553 has 4 divisors (see below), whose sum is σ = 199723968. Its totient is φ = 199667140.

The previous prime is 199695547. The next prime is 199695563. The reversal of 199695553 is 355596991.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 199695553 - 2¹⁷ = 199564481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 199695553.

It is not an unprimeable number, because it can be changed into a prime (199695533) 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, 4908 + ... + 20578.

It is an arithmetic number, because the mean of its divisors is an integer number (49930992).

Almost surely, 2^199695553 is an apocalyptic number.

It is an amenable number.

199695553 is a deficient number, since it is larger than the sum of its proper divisors (28415).

199695553 is a wasteful number, since it uses less digits than its factorization.

199695553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28414.

The product of its digits is 1640250, while the sum is 52.

The square root of 199695553 is about 14131.3676974311. The cubic root of 199695553 is about 584.5066608049.

The spelling of 199695553 in words is "one hundred ninety-nine million, six hundred ninety-five thousand, five hundred fifty-three".