256341225 has 48 divisors (see below), whose sum is σ = 496218240. Its totient is φ = 114316800.

The previous prime is 256341223. The next prime is 256341227. The reversal of 256341225 is 522143652.

It is an interprime number because it is at equal distance from previous prime (256341223) and next prime (256341227).

It is not a de Polignac number, because 256341225 - 2¹ = 256341223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256341192 and 256341201.

It is not an unprimeable number, because it can be changed into a prime (256341223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15571 + ... + 27479.

It is an arithmetic number, because the mean of its divisors is an integer number (10337880).

Almost surely, 2^256341225 is an apocalyptic number.

256341225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256341225 is a deficient number, since it is larger than the sum of its proper divisors (239877015).

256341225 is a wasteful number, since it uses less digits than its factorization.

256341225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11970 (or 11965 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 256341225 is about 16010.6597303172. The cubic root of 256341225 is about 635.2424105999.

Adding to 256341225 its reverse (522143652), we get a palindrome (778484877).

The spelling of 256341225 in words is "two hundred fifty-six million, three hundred forty-one thousand, two hundred twenty-five".