28617033925 has 6 divisors (see below), whose sum is σ = 35485122098. Its totient is φ = 22893627120.

The previous prime is 28617033911. The next prime is 28617033947. The reversal of 28617033925 is 52933071682.

It can be written as a sum of positive squares in 3 ways, for example, as 1942958241 + 26674075684 = 44079^2 + 163322^2 .

It is not a de Polignac number, because 28617033925 - 2¹³ = 28617025733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 572340654 + ... + 572340703.

Almost surely, 2^28617033925 is an apocalyptic number.

28617033925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28617033925 is a deficient number, since it is larger than the sum of its proper divisors (6868088173).

28617033925 is a wasteful number, since it uses less digits than its factorization.

28617033925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144681367 (or 1144681362 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 28617033925 in words is "twenty-eight billion, six hundred seventeen million, thirty-three thousand, nine hundred twenty-five".