25645828 has 48 divisors (see below), whose sum is σ = 51762816. Its totient is φ = 11024640.

The previous prime is 25645817. The next prime is 25645871. The reversal of 25645828 is 82854652.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48775 + ... + 49297.

It is an arithmetic number, because the mean of its divisors is an integer number (1078392).

Almost surely, 2^25645828 is an apocalyptic number.

It is an amenable number.

25645828 is an abundant number, since it is smaller than the sum of its proper divisors (26116988).

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

25645828 is a wasteful number, since it uses less digits than its factorization.

25645828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604 (or 602 counting only the distinct ones).

The product of its digits is 153600, while the sum is 40.

The square root of 25645828 is about 5064.1710081710. The cubic root of 25645828 is about 294.8982815063.

The spelling of 25645828 in words is "twenty-five million, six hundred forty-five thousand, eight hundred twenty-eight".