53917 has 2 divisors, whose sum is σ = 53918. Its totient is φ = 53916.

The previous prime is 53899. The next prime is 53923. The reversal of 53917 is 71935.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34596 + 19321 = 186^2 + 139^2 .

It is a cyclic number.

It is not a de Polignac number, because 53917 - 2¹¹ = 51869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53891 and 53900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26958 + 26959.

It is an arithmetic number, because the mean of its divisors is an integer number (26959).

2⁵³⁹¹⁷ is an apocalyptic number.

It is an amenable number.

53917 is a deficient number, since it is larger than the sum of its proper divisors (1).

53917 is an equidigital number, since it uses as much as digits as its factorization.

53917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 945, while the sum is 25.

The square root of 53917 is about 232.2003445303. The cubic root of 53917 is about 37.7782561134.

The spelling of 53917 in words is "fifty-three thousand, nine hundred seventeen".