25305028 has 12 divisors (see below), whose sum is σ = 50610112. Its totient is φ = 10845000.

The previous prime is 25305013. The next prime is 25305053. The reversal of 25305028 is 82050352.

25305028 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 25304993 and 25305011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451848 + ... + 451903.

Almost surely, 2^25305028 is an apocalyptic number.

25305028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25305028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25305028 is a wasteful number, since it uses less digits than its factorization.

25305028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903762 (or 903760 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 25305028 is about 5030.4103212362. The cubic root of 25305028 is about 293.5861794879.

The spelling of 25305028 in words is "twenty-five million, three hundred five thousand, twenty-eight".