28027755025 has 12 divisors (see below), whose sum is σ = 35098522524. Its totient is φ = 22200200000.

The previous prime is 28027755013. The next prime is 28027755037. The reversal of 28027755025 is 52055772082.

It is an interprime number because it is at equal distance from previous prime (28027755013) and next prime (28027755037).

It can be written as a sum of positive squares in 6 ways, for example, as 2116736064 + 25911018961 = 46008^2 + 160969^2 .

It is not a de Polignac number, because 28027755025 - 2¹⁵ = 28027722257 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5547526 + ... + 5552575.

It is an arithmetic number, because the mean of its divisors is an integer number (2924876877).

Almost surely, 2^28027755025 is an apocalyptic number.

28027755025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28027755025 is a deficient number, since it is larger than the sum of its proper divisors (7070767499).

28027755025 is a wasteful number, since it uses less digits than its factorization.

28027755025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11100212 (or 11100207 counting only the distinct ones).

The product of its (nonzero) digits is 392000, while the sum is 43.

The spelling of 28027755025 in words is "twenty-eight billion, twenty-seven million, seven hundred fifty-five thousand, twenty-five".