225517722726 has 16 divisors (see below), whose sum is σ = 452971222704. Its totient is φ = 74849944704.

The previous prime is 225517722709. The next prime is 225517722737. The reversal of 225517722726 is 627227715522.

225517722726 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 80655871 + ... + 80658666.

It is an arithmetic number, because the mean of its divisors is an integer number (28310701419).

Almost surely, 2^225517722726 is an apocalyptic number.

225517722726 is an abundant number, since it is smaller than the sum of its proper divisors (227453499978).

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

225517722726 is a wasteful number, since it uses less digits than its factorization.

225517722726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161314775.

The product of its digits is 1646400, while the sum is 48.

The spelling of 225517722726 in words is "two hundred twenty-five billion, five hundred seventeen million, seven hundred twenty-two thousand, seven hundred twenty-six".