199793555 has 8 divisors (see below), whose sum is σ = 258194832. Its totient is φ = 147539808.

The previous prime is 199793551. The next prime is 199793567. The reversal of 199793555 is 555397991.

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

It is not a de Polignac number, because 199793555 - 2² = 199793551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199793497 and 199793506.

It is not an unprimeable number, because it can be changed into a prime (199793551) 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, 1536809 + ... + 1536938.

It is an arithmetic number, because the mean of its divisors is an integer number (32274354).

Almost surely, 2^199793555 is an apocalyptic number.

199793555 is a deficient number, since it is larger than the sum of its proper divisors (58401277).

199793555 is a wasteful number, since it uses less digits than its factorization.

199793555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073765.

The product of its digits is 1913625, while the sum is 53.

The square root of 199793555 is about 14134.8348062508. The cubic root of 199793555 is about 584.6022620887.

The spelling of 199793555 in words is "one hundred ninety-nine million, seven hundred ninety-three thousand, five hundred fifty-five".