191522055 has 8 divisors (see below), whose sum is σ = 306435312. Its totient is φ = 102145088.

The previous prime is 191522041. The next prime is 191522057. The reversal of 191522055 is 550225191.

191522055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 191522055 - 2²¹ = 189424903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191522057) 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, 6384054 + ... + 6384083.

It is an arithmetic number, because the mean of its divisors is an integer number (38304414).

Almost surely, 2^191522055 is an apocalyptic number.

191522055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

191522055 is a deficient number, since it is larger than the sum of its proper divisors (114913257).

191522055 is a wasteful number, since it uses less digits than its factorization.

191522055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12768145.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 191522055 is about 13839.1493596969. The cubic root of 191522055 is about 576.4207387244.

The spelling of 191522055 in words is "one hundred ninety-one million, five hundred twenty-two thousand, fifty-five".