25256828 has 6 divisors (see below), whose sum is σ = 44199456. Its totient is φ = 12628412.

The previous prime is 25256821. The next prime is 25256831. The reversal of 25256828 is 82865252.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25256791 and 25256800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25256821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3157100 + ... + 3157107.

It is an arithmetic number, because the mean of its divisors is an integer number (7366576).

Almost surely, 2^25256828 is an apocalyptic number.

It is an amenable number.

25256828 is a deficient number, since it is larger than the sum of its proper divisors (18942628).

25256828 is a wasteful number, since it uses less digits than its factorization.

25256828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6314211 (or 6314209 counting only the distinct ones).

The product of its digits is 76800, while the sum is 38.

The square root of 25256828 is about 5025.6171760292. The cubic root of 25256828 is about 293.3996572938.

The spelling of 25256828 in words is "twenty-five million, two hundred fifty-six thousand, eight hundred twenty-eight".