256025 has 36 divisors (see below), whose sum is σ = 424080. Its totient is φ = 151200.

The previous prime is 256021. The next prime is 256031. The reversal of 256025 is 520652.

It is a happy number.

256025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 256025 - 2² = 256021 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 255988 and 256006.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 256025.

It is not an unprimeable number, because it can be changed into a prime (256021) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13466 + ... + 13484.

It is an arithmetic number, because the mean of its divisors is an integer number (11780).

2²⁵⁶⁰²⁵ is an apocalyptic number.

256025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256025 is a deficient number, since it is larger than the sum of its proper divisors (168055).

256025 is a wasteful number, since it uses less digits than its factorization.

256025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 256025 is about 505.9891303180. The cubic root of 256025 is about 63.4981089399.

Adding to 256025 its reverse (520652), we get a palindrome (776677).

It can be divided in two parts, 2560 and 25, that multiplied together give a cube (64000 = 40³).

The spelling of 256025 in words is "two hundred fifty-six thousand, twenty-five".