605621222225 has 12 divisors (see below), whose sum is σ = 758405668380. Its totient is φ = 479699976000.

The previous prime is 605621222203. The next prime is 605621222233. The reversal of 605621222225 is 522222126506.

It can be written as a sum of positive squares in 6 ways, for example, as 31439190721 + 574182031504 = 177311^2 + 757748^2 .

It is not a de Polignac number, because 605621222225 - 2²⁴ = 605604445009 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 119922470 + ... + 119927519.

It is an arithmetic number, because the mean of its divisors is an integer number (63200472365).

Almost surely, 2^605621222225 is an apocalyptic number.

It is an amenable number.

605621222225 is a deficient number, since it is larger than the sum of its proper divisors (152784446155).

605621222225 is a wasteful number, since it uses less digits than its factorization.

605621222225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239850100 (or 239850095 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 605621222225 in words is "six hundred five billion, six hundred twenty-one million, two hundred twenty-two thousand, two hundred twenty-five".