25396256 has 12 divisors (see below), whose sum is σ = 49998942. Its totient is φ = 12698112.

The previous prime is 25396253. The next prime is 25396279. The reversal of 25396256 is 65269352.

It can be written as a sum of positive squares in only one way, i.e., 20106256 + 5290000 = 4484^2 + 2300^2 .

It is a super-4 number, since 4×25396256⁴ (a number of 31 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (25396253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 396785 + ... + 396848.

Almost surely, 2^25396256 is an apocalyptic number.

It is an amenable number.

25396256 is a deficient number, since it is larger than the sum of its proper divisors (24602686).

25396256 is an equidigital number, since it uses as much as digits as its factorization.

25396256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793643 (or 793635 counting only the distinct ones).

The product of its digits is 97200, while the sum is 38.

The square root of 25396256 is about 5039.4698133831. The cubic root of 25396256 is about 293.9385621386.

It can be divided in two parts, 25396 and 256, that added together give a palindrome (25652).

The spelling of 25396256 in words is "twenty-five million, three hundred ninety-six thousand, two hundred fifty-six".