28125016 has 32 divisors (see below), whose sum is σ = 56876400. Its totient is φ = 12994560.

The previous prime is 28125007. The next prime is 28125023. The reversal of 28125016 is 61052182.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3976 + ... + 8488.

Almost surely, 2^28125016 is an apocalyptic number.

It is an amenable number.

28125016 is an abundant number, since it is smaller than the sum of its proper divisors (28751384).

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

28125016 is a wasteful number, since it uses less digits than its factorization.

28125016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4579 (or 4575 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 28125016 is about 5303.3023673934. The cubic root of 28125016 is about 304.1101574469.

Adding to 28125016 its reverse (61052182), we get a palindrome (89177198).

The spelling of 28125016 in words is "twenty-eight million, one hundred twenty-five thousand, sixteen".