53885 has 8 divisors (see below), whose sum is σ = 69720. Its totient is φ = 39744.
The previous prime is 53881. The next prime is 53887. The reversal of 53885 is 58835.
It can be written as a sum of positive squares in 4 ways, for example, as 1444 + 52441 = 38^2 + 229^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 53885 - 22 = 53881 is a prime.
It is a plaindrome in base 14.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (53881) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350 + ... + 479.
It is an arithmetic number, because the mean of its divisors is an integer number (8715).
253885 is an apocalyptic number.
It is an amenable number.
53885 is a deficient number, since it is larger than the sum of its proper divisors (15835).
53885 is a wasteful number, since it uses less digits than its factorization.
53885 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 847.
The product of its digits is 4800, while the sum is 29.
The square root of 53885 is about 232.1314282901. The cubic root of 53885 is about 37.7707807751.
Adding to 53885 its product of digits (4800), we get a palindrome (58685).
Subtracting 53885 from its reverse (58835), we obtain a triangular number (4950 = T99).
The spelling of 53885 in words is "fifty-three thousand, eight hundred eighty-five".
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