28025255050505 has 8 divisors (see below), whose sum is σ = 33758177948352. Its totient is φ = 22334956115248.

The previous prime is 28025255050447. The next prime is 28025255050561. The reversal of 28025255050505 is 50505055252082.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28025255050505 - 2¹⁰ = 28025255049481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10655989199 + ... + 10655991828.

It is an arithmetic number, because the mean of its divisors is an integer number (4219772243544).

Almost surely, 2^{28025255050505} is an apocalyptic number.

It is an amenable number.

28025255050505 is a deficient number, since it is larger than the sum of its proper divisors (5732922897847).

28025255050505 is a wasteful number, since it uses less digits than its factorization.

28025255050505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21311981295.

The product of its (nonzero) digits is 1000000, while the sum is 44.

The spelling of 28025255050505 in words is "twenty-eight trillion, twenty-five billion, two hundred fifty-five million, fifty thousand, five hundred five".