28502505055 has 16 divisors (see below), whose sum is σ = 36010055520. Its totient is φ = 21597763968.

The previous prime is 28502505013. The next prime is 28502505071. The reversal of 28502505055 is 55050520582.

It is a cyclic number.

It is not a de Polignac number, because 28502505055 - 2⁹ = 28502504543 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526429 + ... + 578041.

It is an arithmetic number, because the mean of its divisors is an integer number (2250628470).

Almost surely, 2^28502505055 is an apocalyptic number.

28502505055 is a deficient number, since it is larger than the sum of its proper divisors (7507550465).

28502505055 is a wasteful number, since it uses less digits than its factorization.

28502505055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57450.

The product of its (nonzero) digits is 100000, while the sum is 37.

The spelling of 28502505055 in words is "twenty-eight billion, five hundred two million, five hundred five thousand, fifty-five".