28830525 has 12 divisors (see below), whose sum is σ = 47666592. Its totient is φ = 15376240.

The previous prime is 28830509. The next prime is 28830539. The reversal of 28830525 is 52503882.

It is not a de Polignac number, because 28830525 - 2⁴ = 28830509 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192129 + ... + 192278.

It is an arithmetic number, because the mean of its divisors is an integer number (3972216).

Almost surely, 2^28830525 is an apocalyptic number.

28830525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28830525 is a deficient number, since it is larger than the sum of its proper divisors (18836067).

28830525 is a wasteful number, since it uses less digits than its factorization.

28830525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384420 (or 384415 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 28830525 is about 5369.4063917718. The cubic root of 28830525 is about 306.6320291429.

The spelling of 28830525 in words is "twenty-eight million, eight hundred thirty thousand, five hundred twenty-five".