25500256 has 24 divisors (see below), whose sum is σ = 50813784. Its totient is φ = 12595200.

The previous prime is 25500253. The next prime is 25500263. The reversal of 25500256 is 65200552.

It is a self number, because there is not a number n which added to its sum of digits gives 25500256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25500253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2145 + ... + 7456.

It is an arithmetic number, because the mean of its divisors is an integer number (2117241).

Almost surely, 2^25500256 is an apocalyptic number.

It is an amenable number.

25500256 is a deficient number, since it is larger than the sum of its proper divisors (25313528).

25500256 is an equidigital number, since it uses as much as digits as its factorization.

25500256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9694 (or 9686 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 25500256 is about 5049.7778168945. Note that the first 3 decimals coincide. The cubic root of 25500256 is about 294.3392508160.

The spelling of 25500256 in words is "twenty-five million, five hundred thousand, two hundred fifty-six".