256010 has 8 divisors (see below), whose sum is σ = 460836. Its totient is φ = 102400.
The previous prime is 255989. The next prime is 256019. The reversal of 256010 is 10652.
It can be written as a sum of positive squares in 2 ways, for example, as 231361 + 24649 = 481^2 + 157^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×2560102 = 131082240200, which contains 22 as substring.
It is a Curzon number.
It is a zygodrome in base 4.
It is not an unprimeable number, because it can be changed into a prime (256019) by changing a digit.
256010 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12791 + ... + 12810.
2256010 is an apocalyptic number.
256010 is a deficient number, since it is larger than the sum of its proper divisors (204826).
256010 is a wasteful number, since it uses less digits than its factorization.
256010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25608.
The product of its (nonzero) digits is 60, while the sum is 14.
The square root of 256010 is about 505.9743076481. The cubic root of 256010 is about 63.4968688393.
Adding to 256010 its reverse (10652), we get a palindrome (266662).
The spelling of 256010 in words is "two hundred fifty-six thousand, ten".
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