28592825 has 12 divisors (see below), whose sum is σ = 35534928. Its totient is φ = 22822800.

The previous prime is 28592813. The next prime is 28592833. The reversal of 28592825 is 52829582.

It is not a de Polignac number, because 28592825 - 2⁶ = 28592761 is a prime.

It is a Duffinian 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 11 ways as a sum of consecutive naturals, for example, 13274 + ... + 15276.

It is an arithmetic number, because the mean of its divisors is an integer number (2961244).

Almost surely, 2^28592825 is an apocalyptic number.

28592825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28592825 is a deficient number, since it is larger than the sum of its proper divisors (6942103).

28592825 is a wasteful number, since it uses less digits than its factorization.

28592825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584 (or 2579 counting only the distinct ones).

The product of its digits is 115200, while the sum is 41.

The square root of 28592825 is about 5347.2259163046. The cubic root of 28592825 is about 305.7870027268.

The spelling of 28592825 in words is "twenty-eight million, five hundred ninety-two thousand, eight hundred twenty-five".