52109191 has 8 divisors (see below), whose sum is σ = 57237120. Its totient is φ = 47219832.

The previous prime is 52109173. The next prime is 52109203. The reversal of 52109191 is 19190125.

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 52109191 - 2¹³ = 52100999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52104191) 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, 59185 + ... + 60058.

It is an arithmetic number, because the mean of its divisors is an integer number (7154640).

Almost surely, 2^52109191 is an apocalyptic number.

52109191 is a deficient number, since it is larger than the sum of its proper divisors (5127929).

52109191 is a wasteful number, since it uses less digits than its factorization.

52109191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119285.

The product of its (nonzero) digits is 810, while the sum is 28.

The square root of 52109191 is about 7218.6696142710. The cubic root of 52109191 is about 373.5121872791.

The spelling of 52109191 in words is "fifty-two million, one hundred nine thousand, one hundred ninety-one".