28303225502 has 8 divisors (see below), whose sum is σ = 42498744816. Its totient is φ = 14136977232.

The previous prime is 28303225499. The next prime is 28303225571. The reversal of 28303225502 is 20552230382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7315343 + ... + 7319210.

It is an arithmetic number, because the mean of its divisors is an integer number (5312343102).

Almost surely, 2^28303225502 is an apocalyptic number.

28303225502 is a deficient number, since it is larger than the sum of its proper divisors (14195519314).

28303225502 is a wasteful number, since it uses less digits than its factorization.

28303225502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14635522.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 28303225502 its reverse (20552230382), we get a palindrome (48855455884).

The spelling of 28303225502 in words is "twenty-eight billion, three hundred three million, two hundred twenty-five thousand, five hundred two".