28125014 has 4 divisors (see below), whose sum is σ = 42187524. Its totient is φ = 14062506.

The previous prime is 28125007. The next prime is 28125023. The reversal of 28125014 is 41052182.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7031252 + ... + 7031255.

It is an arithmetic number, because the mean of its divisors is an integer number (10546881).

Almost surely, 2^28125014 is an apocalyptic number.

28125014 is a deficient number, since it is larger than the sum of its proper divisors (14062510).

28125014 is a wasteful number, since it uses less digits than its factorization.

28125014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14062509.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 28125014 is about 5303.3021788316. The cubic root of 28125014 is about 304.1101502384.

Adding to 28125014 its reverse (41052182), we get a palindrome (69177196).

The spelling of 28125014 in words is "twenty-eight million, one hundred twenty-five thousand, fourteen".