53819 has 2 divisors, whose sum is σ = 53820. Its totient is φ = 53818.

The previous prime is 53813. The next prime is 53831. The reversal of 53819 is 91835.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53819 is a prime.

It is a super-2 number, since 2×53819² = 5792969522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26909 + 26910.

It is an arithmetic number, because the mean of its divisors is an integer number (26910).

2⁵³⁸¹⁹ is an apocalyptic number.

53819 is a deficient number, since it is larger than the sum of its proper divisors (1).

53819 is an equidigital number, since it uses as much as digits as its factorization.

53819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 26.

The square root of 53819 is about 231.9892238877. The cubic root of 53819 is about 37.7553535381.

The spelling of 53819 in words is "fifty-three thousand, eight hundred nineteen".