53918 has 4 divisors (see below), whose sum is σ = 80880. Its totient is φ = 26958.
The previous prime is 53917. The next prime is 53923. The reversal of 53918 is 81935.
It is a semiprime because it is the product of two primes.
It is a magnanimous number.
It is an Ulam number.
It is a Curzon number.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 53918.
It is not an unprimeable number, because it can be changed into a prime (53917) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13478 + ... + 13481.
It is an arithmetic number, because the mean of its divisors is an integer number (20220).
253918 is an apocalyptic number.
53918 is a deficient number, since it is larger than the sum of its proper divisors (26962).
53918 is a wasteful number, since it uses less digits than its factorization.
53918 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26961.
The product of its digits is 1080, while the sum is 26.
The square root of 53918 is about 232.2024978332. The cubic root of 53918 is about 37.7784896700.
The spelling of 53918 in words is "fifty-three thousand, nine hundred eighteen".
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