1000255 has 8 divisors (see below), whose sum is σ = 1263600. Its totient is φ = 758016.

The previous prime is 1000253. The next prime is 1000273. The reversal of 1000255 is 5520001.

1000255 = T₉₅ + T₉₆ + ... + T₁₈₉.

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 1000255 - 2¹ = 1000253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5170 + ... + 5359.

It is an arithmetic number, because the mean of its divisors is an integer number (157950).

2^1000255 is an apocalyptic number.

1000255 is a deficient number, since it is larger than the sum of its proper divisors (263345).

1000255 is a wasteful number, since it uses less digits than its factorization.

1000255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10553.

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 1000255 is about 1000.1274918729. The cubic root of 1000255 is about 100.0084992776.

Adding to 1000255 its reverse (5520001), we get a palindrome (6520256).

The spelling of 1000255 in words is "one million, two hundred fifty-five", and thus it is an aban number.