191583055 has 8 divisors (see below), whose sum is σ = 229996800. Its totient is φ = 153201696.

The previous prime is 191583053. The next prime is 191583059. The reversal of 191583055 is 550385191.

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

It is a cyclic number.

It is not a de Polignac number, because 191583055 - 2¹ = 191583053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191583053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7741 + ... + 21049.

It is an arithmetic number, because the mean of its divisors is an integer number (28749600).

Almost surely, 2^191583055 is an apocalyptic number.

191583055 is a deficient number, since it is larger than the sum of its proper divisors (38413745).

191583055 is a wasteful number, since it uses less digits than its factorization.

191583055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16193.

The product of its (nonzero) digits is 27000, while the sum is 37.

The square root of 191583055 is about 13841.3530769213. The cubic root of 191583055 is about 576.4819291231.

The spelling of 191583055 in words is "one hundred ninety-one million, five hundred eighty-three thousand, fifty-five".