256371325 has 24 divisors (see below), whose sum is σ = 364208832. Its totient is φ = 175365120.

The previous prime is 256371307. The next prime is 256371331. The reversal of 256371325 is 523173652.

It is not a de Polignac number, because 256371325 - 2⁹ = 256370813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80157 + ... + 83293.

It is an arithmetic number, because the mean of its divisors is an integer number (15175368).

Almost surely, 2^256371325 is an apocalyptic number.

256371325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256371325 is a deficient number, since it is larger than the sum of its proper divisors (107837507).

256371325 is a wasteful number, since it uses less digits than its factorization.

256371325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621 (or 3616 counting only the distinct ones).

The product of its digits is 37800, while the sum is 34.

The square root of 256371325 is about 16011.5997014664. The cubic root of 256371325 is about 635.2672733562.

It can be divided in two parts, 25637 and 1325, that added together give a palindrome (26962).

The spelling of 256371325 in words is "two hundred fifty-six million, three hundred seventy-one thousand, three hundred twenty-five".