28555714025 has 12 divisors (see below), whose sum is σ = 35557248000. Its totient is φ = 22748982480.

The previous prime is 28555714013. The next prime is 28555714073. The reversal of 28555714025 is 52041755582.

It is not a de Polignac number, because 28555714025 - 2¹² = 28555709929 is a prime.

It is an unprimeable number.

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, 2383625 + ... + 2395574.

It is an arithmetic number, because the mean of its divisors is an integer number (2963104000).

Almost surely, 2^28555714025 is an apocalyptic number.

28555714025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28555714025 is a deficient number, since it is larger than the sum of its proper divisors (7001533975).

28555714025 is a wasteful number, since it uses less digits than its factorization.

28555714025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4779448 (or 4779443 counting only the distinct ones).

The product of its (nonzero) digits is 560000, while the sum is 44.

The spelling of 28555714025 in words is "twenty-eight billion, five hundred fifty-five million, seven hundred fourteen thousand, twenty-five".