28827573925 has 24 divisors (see below), whose sum is σ = 36168075720. Its totient is φ = 22790169600.

The previous prime is 28827573881. The next prime is 28827573941. The reversal of 28827573925 is 52937572882.

It can be written as a sum of positive squares in 12 ways, for example, as 24656222529 + 4171351396 = 157023^2 + 64586^2 .

It is not a de Polignac number, because 28827573925 - 2¹⁵ = 28827541157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28827573925.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 7075689 + ... + 7079761.

It is an arithmetic number, because the mean of its divisors is an integer number (1507003155).

Almost surely, 2^28827573925 is an apocalyptic number.

28827573925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28827573925 is a deficient number, since it is larger than the sum of its proper divisors (7340501795).

28827573925 is a wasteful number, since it uses less digits than its factorization.

28827573925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7353 (or 7348 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 58.

The spelling of 28827573925 in words is "twenty-eight billion, eight hundred twenty-seven million, five hundred seventy-three thousand, nine hundred twenty-five".