256322325 has 24 divisors (see below), whose sum is σ = 484328128. Its totient is φ = 117175680.

The previous prime is 256322323. The next prime is 256322351. The reversal of 256322325 is 523223652.

It is not a de Polignac number, because 256322325 - 2¹ = 256322323 is a prime.

It is a super-2 number, since 2×256322325² = 131402268586811250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256322292 and 256322301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256322321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 243592 + ... + 244641.

Almost surely, 2^256322325 is an apocalyptic number.

256322325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256322325 is a deficient number, since it is larger than the sum of its proper divisors (228005803).

256322325 is a wasteful number, since it uses less digits than its factorization.

256322325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488253 (or 488248 counting only the distinct ones).

The product of its digits is 21600, while the sum is 30.

The square root of 256322325 is about 16010.0694876693. The cubic root of 256322325 is about 635.2267981070.

Adding to 256322325 its reverse (523223652), we get a palindrome (779545977).

The spelling of 256322325 in words is "two hundred fifty-six million, three hundred twenty-two thousand, three hundred twenty-five".