199550355 has 8 divisors (see below), whose sum is σ = 319280592. Its totient is φ = 106426848.

The previous prime is 199550347. The next prime is 199550359. The reversal of 199550355 is 553055991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 199550355 - 2³ = 199550347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199550359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6651664 + ... + 6651693.

It is an arithmetic number, because the mean of its divisors is an integer number (39910074).

Almost surely, 2^199550355 is an apocalyptic number.

199550355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

199550355 is a deficient number, since it is larger than the sum of its proper divisors (119730237).

199550355 is a wasteful number, since it uses less digits than its factorization.

199550355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13303365.

The product of its (nonzero) digits is 151875, while the sum is 42.

The square root of 199550355 is about 14126.2293270356. The cubic root of 199550355 is about 584.3649621466.

It can be divided in two parts, 1995 and 50355, that multiplied together give a triangular number (100458225 = T₁₄₁₇₄).

The spelling of 199550355 in words is "one hundred ninety-nine million, five hundred fifty thousand, three hundred fifty-five".