225520105325 has 6 divisors (see below), whose sum is σ = 279644930634. Its totient is φ = 180416084240.

The previous prime is 225520105259. The next prime is 225520105387. The reversal of 225520105325 is 523501025522.

225520105325 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 3 ways, for example, as 48765447241 + 176754658084 = 220829^2 + 420422^2 .

It is a de Polignac number, because none of the positive numbers 2^k-225520105325 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225520105291 and 225520105300.

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 5 ways as a sum of consecutive naturals, for example, 4510402082 + ... + 4510402131.

It is an arithmetic number, because the mean of its divisors is an integer number (46607488439).

Almost surely, 2^225520105325 is an apocalyptic number.

225520105325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225520105325 is a deficient number, since it is larger than the sum of its proper divisors (54124825309).

225520105325 is an equidigital number, since it uses as much as digits as its factorization.

225520105325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9020804223 (or 9020804218 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 225520105325 in words is "two hundred twenty-five billion, five hundred twenty million, one hundred five thousand, three hundred twenty-five".