53719 has 2 divisors, whose sum is σ = 53720. Its totient is φ = 53718.

The previous prime is 53717. The next prime is 53731. The reversal of 53719 is 91735.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53719 - 2¹ = 53717 is a prime.

It is a super-2 number, since 2×53719² = 5771461922, which contains 22 as substring.

Together with 53717, it forms a pair of twin primes.

53719 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 53693 and 53702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26859 + 26860.

It is an arithmetic number, because the mean of its divisors is an integer number (26860).

2⁵³⁷¹⁹ is an apocalyptic number.

53719 is a deficient number, since it is larger than the sum of its proper divisors (1).

53719 is an equidigital number, since it uses as much as digits as its factorization.

53719 is an evil number, because the sum of its binary digits is even.

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

The square root of 53719 is about 231.7735964255. The cubic root of 53719 is about 37.7319548859.

The spelling of 53719 in words is "fifty-three thousand, seven hundred nineteen".