199552903 has 4 divisors (see below), whose sum is σ = 217694088. Its totient is φ = 181411720.

The previous prime is 199552901. The next prime is 199552907. The reversal of 199552903 is 309255991.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 199552903 - 2¹ = 199552901 is a prime.

It is a super-2 number, since 2×199552903² = 79642722191454818, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 199552903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199552901) 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, 9070576 + ... + 9070597.

It is an arithmetic number, because the mean of its divisors is an integer number (54423522).

Almost surely, 2^199552903 is an apocalyptic number.

199552903 is a deficient number, since it is larger than the sum of its proper divisors (18141185).

199552903 is a wasteful number, since it uses less digits than its factorization.

199552903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18141184.

The product of its (nonzero) digits is 109350, while the sum is 43.

The square root of 199552903 is about 14126.3195135888. The cubic root of 199552903 is about 584.3674493310.

The spelling of 199552903 in words is "one hundred ninety-nine million, five hundred fifty-two thousand, nine hundred three".