53678 has 4 divisors (see below), whose sum is σ = 80520. Its totient is φ = 26838.

The previous prime is 53657. The next prime is 53681. The reversal of 53678 is 87635.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13418 + ... + 13421.

It is an arithmetic number, because the mean of its divisors is an integer number (20130).

2⁵³⁶⁷⁸ is an apocalyptic number.

53678 is a deficient number, since it is larger than the sum of its proper divisors (26842).

53678 is a wasteful number, since it uses less digits than its factorization.

53678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26841.

The product of its digits is 5040, while the sum is 29.

The square root of 53678 is about 231.6851311586. The cubic root of 53678 is about 37.7223530449.

The spelling of 53678 in words is "fifty-three thousand, six hundred seventy-eight".