256036 has 27 divisors (see below), whose sum is σ = 514843. Its totient is φ = 111320.

The previous prime is 256033. The next prime is 256049. The reversal of 256036 is 630652.

256036 = T₅₃ + T₅₄ + ... + T₁₁₈.

The square root of 256036 is 506.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a d-powerful number, because it can be written as 2⁹ + 5⁷ + 0 + 6² + 3¹¹ + 6³ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255998 and 256016.

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 8 ways as a sum of consecutive naturals, for example, 11121 + ... + 11143.

256036 is a Friedman number, since it can be written as 506^(2^3-6), using all its digits and the basic arithmetic operations.

2²⁵⁶⁰³⁶ is an apocalyptic number.

256036 is the 506-th square number.

It is an amenable number.

256036 is an abundant number, since it is smaller than the sum of its proper divisors (258807).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256036 is a wasteful number, since it uses less digits than its factorization.

256036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The cubic root of 256036 is about 63.4990183162.

Adding to 256036 its reverse (630652), we get a palindrome (886688).

The spelling of 256036 in words is "two hundred fifty-six thousand, thirty-six".