225766326573520 has 40 divisors (see below), whose sum is σ = 524911470256800. Its totient is φ = 90305711537280.

The previous prime is 225766326573499. The next prime is 225766326573539. The reversal of 225766326573520 is 25375623667522.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3884470 + ... + 21601429.

It is an arithmetic number, because the mean of its divisors is an integer number (13122786756420).

Almost surely, 2^{225766326573520} is an apocalyptic number.

225766326573520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225766326573520 is an abundant number, since it is smaller than the sum of its proper divisors (299145143683280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225766326573520 is a wasteful number, since it uses less digits than its factorization.

225766326573520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25596643 (or 25596637 counting only the distinct ones).

The product of its (nonzero) digits is 190512000, while the sum is 61.

The spelling of 225766326573520 in words is "two hundred twenty-five trillion, seven hundred sixty-six billion, three hundred twenty-six million, five hundred seventy-three thousand, five hundred twenty".