28055253028 has 12 divisors (see below), whose sum is σ = 53560028592. Its totient is φ = 12752387720.

The previous prime is 28055253013. The next prime is 28055253091. The reversal of 28055253028 is 82035255082.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318809650 + ... + 318809737.

It is an arithmetic number, because the mean of its divisors is an integer number (4463335716).

Almost surely, 2^28055253028 is an apocalyptic number.

It is an amenable number.

28055253028 is a deficient number, since it is larger than the sum of its proper divisors (25504775564).

28055253028 is a wasteful number, since it uses less digits than its factorization.

28055253028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637619402 (or 637619400 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 40.

The spelling of 28055253028 in words is "twenty-eight billion, fifty-five million, two hundred fifty-three thousand, twenty-eight".