53966 has 12 divisors (see below), whose sum is σ = 89376. Its totient is φ = 24420.

The previous prime is 53959. The next prime is 53987. The reversal of 53966 is 66935.

It is a congruent number.

It is an unprimeable number.

53966 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131 + ... + 353.

It is an arithmetic number, because the mean of its divisors is an integer number (7448).

2⁵³⁹⁶⁶ is an apocalyptic number.

53966 is a deficient number, since it is larger than the sum of its proper divisors (35410).

53966 is a wasteful number, since it uses less digits than its factorization.

53966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 236 counting only the distinct ones).

The product of its digits is 4860, while the sum is 29.

The square root of 53966 is about 232.3058329014. The cubic root of 53966 is about 37.7896969951.

The spelling of 53966 in words is "fifty-three thousand, nine hundred sixty-six".