256035 has 24 divisors (see below), whose sum is σ = 447984. Its totient is φ = 124800.

The previous prime is 256033. The next prime is 256049. The reversal of 256035 is 530652.

256035 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 506²-1.

It is not a de Polignac number, because 256035 - 2¹ = 256033 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 256035.

It is not an unprimeable number, because it can be changed into a prime (256031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2485 + ... + 2585.

It is an arithmetic number, because the mean of its divisors is an integer number (18666).

2²⁵⁶⁰³⁵ is an apocalyptic number.

256035 is a deficient number, since it is larger than the sum of its proper divisors (191949).

256035 is a wasteful number, since it uses less digits than its factorization.

256035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 256035 is about 505.9990118567. Note that the first 3 decimals coincide. The cubic root of 256035 is about 63.4989356467.

Multiplying 256035 by its sum of digits (21), we get a palindrome (5376735).

Adding to 256035 its reverse (530652), we get a palindrome (786687).

The spelling of 256035 in words is "two hundred fifty-six thousand, thirty-five".