28552823625 has 64 divisors (see below), whose sum is σ = 49289011200. Its totient is φ = 14661561600.

The previous prime is 28552823587. The next prime is 28552823701. The reversal of 28552823625 is 52632825582.

It is not a de Polignac number, because 28552823625 - 2¹⁶ = 28552758089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4052856 + ... + 4059894.

It is an arithmetic number, because the mean of its divisors is an integer number (770140800).

Almost surely, 2^28552823625 is an apocalyptic number.

28552823625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28552823625 is a deficient number, since it is larger than the sum of its proper divisors (20736187575).

28552823625 is a wasteful number, since it uses less digits than its factorization.

28552823625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7459 (or 7449 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 48.

The spelling of 28552823625 in words is "twenty-eight billion, five hundred fifty-two million, eight hundred twenty-three thousand, six hundred twenty-five".