53611 has 2 divisors, whose sum is σ = 53612. Its totient is φ = 53610.

The previous prime is 53609. The next prime is 53617. The reversal of 53611 is 11635.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53611 - 2¹ = 53609 is a prime.

Together with 53609, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (53617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26805 + 26806.

It is an arithmetic number, because the mean of its divisors is an integer number (26806).

2⁵³⁶¹¹ is an apocalyptic number.

53611 is a deficient number, since it is larger than the sum of its proper divisors (1).

53611 is an equidigital number, since it uses as much as digits as its factorization.

53611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90, while the sum is 16.

The square root of 53611 is about 231.5404932188. The cubic root of 53611 is about 37.7066517027.

The spelling of 53611 in words is "fifty-three thousand, six hundred eleven".