256325641 has 16 divisors (see below), whose sum is σ = 302037120. Its totient is φ = 214456320.

The previous prime is 256325633. The next prime is 256325651. The reversal of 256325641 is 146523652.

It is not a de Polignac number, because 256325641 - 2³ = 256325633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256325597 and 256325606.

It is not an unprimeable number, because it can be changed into a prime (256325611) 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 15 ways as a sum of consecutive naturals, for example, 48841 + ... + 53833.

It is an arithmetic number, because the mean of its divisors is an integer number (18877320).

Almost surely, 2^256325641 is an apocalyptic number.

It is an amenable number.

256325641 is a deficient number, since it is larger than the sum of its proper divisors (45711479).

256325641 is a wasteful number, since it uses less digits than its factorization.

256325641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5376.

The product of its digits is 43200, while the sum is 34.

The square root of 256325641 is about 16010.1730471597. The cubic root of 256325641 is about 635.2295373703.

The spelling of 256325641 in words is "two hundred fifty-six million, three hundred twenty-five thousand, six hundred forty-one".