53187 has 4 divisors (see below), whose sum is σ = 70920. Its totient is φ = 35456.

The previous prime is 53173. The next prime is 53189. The reversal of 53187 is 78135.

53187 is nontrivially palindromic in base 14.

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 53187 - 2⁴ = 53171 is a prime.

It is a D-number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (53189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8862 + ... + 8867.

It is an arithmetic number, because the mean of its divisors is an integer number (17730).

2⁵³¹⁸⁷ is an apocalyptic number.

53187 is a deficient number, since it is larger than the sum of its proper divisors (17733).

53187 is a wasteful number, since it uses less digits than its factorization.

53187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17732.

The product of its digits is 840, while the sum is 24.

The square root of 53187 is about 230.6230690976. The cubic root of 53187 is about 37.6069833868.

The spelling of 53187 in words is "fifty-three thousand, one hundred eighty-seven".