53091 has 12 divisors (see below), whose sum is σ = 81432. Its totient is φ = 33216.

The previous prime is 53089. The next prime is 53093. The reversal of 53091 is 19035.

It is an interprime number because it is at equal distance from previous prime (53089) and next prime (53093).

It is not a de Polignac number, because 53091 - 2¹ = 53089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21 + ... + 326.

It is an arithmetic number, because the mean of its divisors is an integer number (6786).

2⁵³⁰⁹¹ is an apocalyptic number.

53091 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

53091 is a deficient number, since it is larger than the sum of its proper divisors (28341).

53091 is a wasteful number, since it uses less digits than its factorization.

53091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 53091 is about 230.4148432719. The cubic root of 53091 is about 37.5843434891.

The spelling of 53091 in words is "fifty-three thousand, ninety-one".