53191 has 4 divisors (see below), whose sum is σ = 54472. Its totient is φ = 51912.

The previous prime is 53189. The next prime is 53197. The reversal of 53191 is 19135.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53191 - 2¹ = 53189 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576 + ... + 661.

It is an arithmetic number, because the mean of its divisors is an integer number (13618).

2⁵³¹⁹¹ is an apocalyptic number.

53191 is a deficient number, since it is larger than the sum of its proper divisors (1281).

53191 is a wasteful number, since it uses less digits than its factorization.

53191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280.

The product of its digits is 135, while the sum is 19.

The square root of 53191 is about 230.6317410939. The cubic root of 53191 is about 37.6079261244.

The spelling of 53191 in words is "fifty-three thousand, one hundred ninety-one".