53929 has 4 divisors (see below), whose sum is σ = 54400. Its totient is φ = 53460.
The previous prime is 53927. The next prime is 53939. The reversal of 53929 is 92935.
53929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 92935 = 5 ⋅18587.
It is a cyclic number.
It is not a de Polignac number, because 53929 - 21 = 53927 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 53897 and 53906.
It is not an unprimeable number, because it can be changed into a prime (53923) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64 + ... + 334.
It is an arithmetic number, because the mean of its divisors is an integer number (13600).
253929 is an apocalyptic number.
It is an amenable number.
53929 is a deficient number, since it is larger than the sum of its proper divisors (471).
53929 is a wasteful number, since it uses less digits than its factorization.
53929 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 470.
The product of its digits is 2430, while the sum is 28.
The square root of 53929 is about 232.2261828477. The cubic root of 53929 is about 37.7810586027.
The spelling of 53929 in words is "fifty-three thousand, nine hundred twenty-nine".
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