25009828 has 24 divisors (see below), whose sum is σ = 45045504. Its totient is φ = 12144000.

The previous prime is 25009813. The next prime is 25009847. The reversal of 25009828 is 82890052.

It is a junction number, because it is equal to n+sod(n) for n = 25009793 and 25009802.

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, 27948 + ... + 28828.

It is an arithmetic number, because the mean of its divisors is an integer number (1876896).

Almost surely, 2^25009828 is an apocalyptic number.

It is an amenable number.

25009828 is a deficient number, since it is larger than the sum of its proper divisors (20035676).

25009828 is a wasteful number, since it uses less digits than its factorization.

25009828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083 (or 1081 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 25009828 is about 5000.9827034294. The cubic root of 25009828 is about 292.4400851299.

The spelling of 25009828 in words is "twenty-five million, nine thousand, eight hundred twenty-eight".