28052803025 has 24 divisors (see below), whose sum is σ = 37832229624. Its totient is φ = 20510784000.

The previous prime is 28052803019. The next prime is 28052803039. The reversal of 28052803025 is 52030825082.

It can be written as a sum of positive squares in 12 ways, for example, as 159794881 + 27893008144 = 12641^2 + 167012^2 .

It is not a de Polignac number, because 28052803025 - 2⁶ = 28052802961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 394484 + ... + 460133.

It is an arithmetic number, because the mean of its divisors is an integer number (1576342901).

Almost surely, 2^28052803025 is an apocalyptic number.

28052803025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28052803025 is a deficient number, since it is larger than the sum of its proper divisors (9779426599).

28052803025 is a wasteful number, since it uses less digits than its factorization.

28052803025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854741 (or 854736 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 28052803025 in words is "twenty-eight billion, fifty-two million, eight hundred three thousand, twenty-five".