256444325 has 6 divisors (see below), whose sum is σ = 317990994. Its totient is φ = 205155440.

The previous prime is 256444313. The next prime is 256444339. The reversal of 256444325 is 523444652.

256444325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 988036 + 255456289 = 994^2 + 15983^2 .

It is not a de Polignac number, because 256444325 - 2¹⁰ = 256443301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5128862 + ... + 5128911.

It is an arithmetic number, because the mean of its divisors is an integer number (52998499).

Almost surely, 2^256444325 is an apocalyptic number.

256444325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256444325 is a deficient number, since it is larger than the sum of its proper divisors (61546669).

256444325 is a wasteful number, since it uses less digits than its factorization.

256444325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10257783 (or 10257778 counting only the distinct ones).

The product of its digits is 115200, while the sum is 35.

The square root of 256444325 is about 16013.8791365490. The cubic root of 256444325 is about 635.3275636533.

Adding to 256444325 its reverse (523444652), we get a palindrome (779888977).

The spelling of 256444325 in words is "two hundred fifty-six million, four hundred forty-four thousand, three hundred twenty-five".