225212623334561 has 8 divisors (see below), whose sum is σ = 226090250735400. Its totient is φ = 224335006117888.

The previous prime is 225212623334527. The next prime is 225212623334579. The reversal of 225212623334561 is 165433326212522.

It can be written as a sum of positive squares in 4 ways, for example, as 11610919950400 + 213601703384161 = 3407480^2 + 14615119^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225212623334561 - 2³⁰ = 225211549592737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225212623334521) by changing a digit.

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, 43378955 + ... + 48292431.

It is an arithmetic number, because the mean of its divisors is an integer number (28261281341925).

Almost surely, 2^{225212623334561} is an apocalyptic number.

It is an amenable number.

225212623334561 is a deficient number, since it is larger than the sum of its proper divisors (877627400839).

225212623334561 is a wasteful number, since it uses less digits than its factorization.

225212623334561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5092083.

The product of its digits is 3110400, while the sum is 47.

The spelling of 225212623334561 in words is "two hundred twenty-five trillion, two hundred twelve billion, six hundred twenty-three million, three hundred thirty-four thousand, five hundred sixty-one".