28814932225 has 24 divisors (see below), whose sum is σ = 36806706720. Its totient is φ = 22363920000.

The previous prime is 28814932219. The next prime is 28814932247. The reversal of 28814932225 is 52223941882.

It is not a de Polignac number, because 28814932225 - 2⁵ = 28814932193 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104950 + ... + 262000.

It is an arithmetic number, because the mean of its divisors is an integer number (1533612780).

Almost surely, 2^28814932225 is an apocalyptic number.

28814932225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28814932225 is a deficient number, since it is larger than the sum of its proper divisors (7991774495).

28814932225 is a wasteful number, since it uses less digits than its factorization.

28814932225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157281 (or 157276 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The spelling of 28814932225 in words is "twenty-eight billion, eight hundred fourteen million, nine hundred thirty-two thousand, two hundred twenty-five".