28252558285 has 32 divisors (see below), whose sum is σ = 39284582400. Its totient is φ = 19105934400.

The previous prime is 28252558283. The next prime is 28252558289. The reversal of 28252558285 is 58285525282.

It is not a de Polignac number, because 28252558285 - 2¹ = 28252558283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28252558283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 715386 + ... + 753844.

It is an arithmetic number, because the mean of its divisors is an integer number (1227643200).

Almost surely, 2^28252558285 is an apocalyptic number.

It is an amenable number.

28252558285 is a deficient number, since it is larger than the sum of its proper divisors (11032024115).

28252558285 is a wasteful number, since it uses less digits than its factorization.

28252558285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38761.

The product of its digits is 5120000, while the sum is 52.

The spelling of 28252558285 in words is "twenty-eight billion, two hundred fifty-two million, five hundred fifty-eight thousand, two hundred eighty-five".