25256256 has 28 divisors (see below), whose sum is σ = 66824352. Its totient is φ = 8418688.

The previous prime is 25256251. The next prime is 25256261. The reversal of 25256256 is 65265252.

It is an interprime number because it is at equal distance from previous prime (25256251) and next prime (25256261).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25256251) 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 in 3 ways as a sum of consecutive naturals, for example, 65580 + ... + 65963.

It is an arithmetic number, because the mean of its divisors is an integer number (2386584).

Almost surely, 2^25256256 is an apocalyptic number.

It is an amenable number.

25256256 is an abundant number, since it is smaller than the sum of its proper divisors (41568096).

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

25256256 is a wasteful number, since it uses less digits than its factorization.

25256256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131558 (or 131548 counting only the distinct ones).

The product of its digits is 36000, while the sum is 33.

The square root of 25256256 is about 5025.5602672737. The cubic root of 25256256 is about 293.3974423697.

The spelling of 25256256 in words is "twenty-five million, two hundred fifty-six thousand, two hundred fifty-six".