228505002625 has 16 divisors (see below), whose sum is σ = 285270757200. Its totient is φ = 182742134400.

The previous prime is 228505002617. The next prime is 228505002629. The reversal of 228505002625 is 526200505822.

228505002625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 180400669696 + 48104332929 = 424736^2 + 219327^2 .

It is not a de Polignac number, because 228505002625 - 2³ = 228505002617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228505002629) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 63271 + ... + 678979.

It is an arithmetic number, because the mean of its divisors is an integer number (17829422325).

Almost surely, 2^228505002625 is an apocalyptic number.

228505002625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228505002625 is a deficient number, since it is larger than the sum of its proper divisors (56765754575).

228505002625 is an equidigital number, since it uses as much as digits as its factorization.

228505002625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618693 (or 618683 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 228505002625 in words is "two hundred twenty-eight billion, five hundred five million, two thousand, six hundred twenty-five".