25750256 has 40 divisors (see below), whose sum is σ = 57329664. Its totient is φ = 10975680.

The previous prime is 25750247. The next prime is 25750259. The reversal of 25750256 is 65205752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25750259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24461 + ... + 25491.

Almost surely, 2^25750256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25750256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28664832).

25750256 is an abundant number, since it is smaller than the sum of its proper divisors (31579408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25750256 is a wasteful number, since it uses less digits than its factorization.

25750256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269 (or 1263 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 25750256 is about 5074.4710069129. The cubic root of 25750256 is about 295.2980077675.

The spelling of 25750256 in words is "twenty-five million, seven hundred fifty thousand, two hundred fifty-six".