405255 has 8 divisors (see below), whose sum is σ = 648432. Its totient is φ = 216128.
The previous prime is 405253. The next prime is 405269. The reversal of 405255 is 552504.
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 405255 - 21 = 405253 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (405253) 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, 13494 + ... + 13523.
It is an arithmetic number, because the mean of its divisors is an integer number (81054).
2405255 is an apocalyptic number.
405255 is a deficient number, since it is larger than the sum of its proper divisors (243177).
405255 is a wasteful number, since it uses less digits than its factorization.
405255 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27025.
The product of its (nonzero) digits is 1000, while the sum is 21.
The square root of 405255 is about 636.5964184631. The cubic root of 405255 is about 74.0018869740.
Adding to 405255 its reverse (552504), we get a palindrome (957759).
The spelling of 405255 in words is "four hundred five thousand, two hundred fifty-five".
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