28602848225 has 12 divisors (see below), whose sum is σ = 40534322304. Its totient is φ = 19613381520.

The previous prime is 28602848221. The next prime is 28602848269. The reversal of 28602848225 is 52284820682.

It is not a de Polignac number, because 28602848225 - 2² = 28602848221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28602848225.

It is not an unprimeable number, because it can be changed into a prime (28602848221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81722249 + ... + 81722598.

It is an arithmetic number, because the mean of its divisors is an integer number (3377860192).

Almost surely, 2^28602848225 is an apocalyptic number.

28602848225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28602848225 is a deficient number, since it is larger than the sum of its proper divisors (11931474079).

28602848225 is a wasteful number, since it uses less digits than its factorization.

28602848225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163444864 (or 163444859 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 47.

The spelling of 28602848225 in words is "twenty-eight billion, six hundred two million, eight hundred forty-eight thousand, two hundred twenty-five".