25828828 has 36 divisors (see below), whose sum is σ = 49328832. Its totient is φ = 11819520.

The previous prime is 25828823. The next prime is 25828871. The reversal of 25828828 is 82882852.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25828823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44476 + ... + 45052.

Almost surely, 2^25828828 is an apocalyptic number.

It is an amenable number.

25828828 is a deficient number, since it is larger than the sum of its proper divisors (23500004).

25828828 is a wasteful number, since it uses less digits than its factorization.

25828828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 629 counting only the distinct ones).

The product of its digits is 163840, while the sum is 43.

The square root of 25828828 is about 5082.2070009003. The cubic root of 25828828 is about 295.5980513347.

The spelling of 25828828 in words is "twenty-five million, eight hundred twenty-eight thousand, eight hundred twenty-eight".