25775828 has 24 divisors (see below), whose sum is σ = 49894152. Its totient is φ = 11574144.

The previous prime is 25775819. The next prime is 25775843. The reversal of 25775828 is 82857752.

It can be written as a sum of positive squares in 4 ways, for example, as 394384 + 25381444 = 628^2 + 5038^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4775 + ... + 8622.

It is an arithmetic number, because the mean of its divisors is an integer number (2078923).

Almost surely, 2^25775828 is an apocalyptic number.

It is an amenable number.

25775828 is a deficient number, since it is larger than the sum of its proper divisors (24118324).

25775828 is a wasteful number, since it uses less digits than its factorization.

25775828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13451 (or 13449 counting only the distinct ones).

The product of its digits is 313600, while the sum is 44.

The square root of 25775828 is about 5076.9900531713. The cubic root of 25775828 is about 295.3957266968.

The spelling of 25775828 in words is "twenty-five million, seven hundred seventy-five thousand, eight hundred twenty-eight".