561222325 has 6 divisors (see below), whose sum is σ = 695915714. Its totient is φ = 448977840.

The previous prime is 561222317. The next prime is 561222397. The reversal of 561222325 is 523222165.

561222325 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 120978001 + 440244324 = 10999^2 + 20982^2 .

It is not a de Polignac number, because 561222325 - 2³ = 561222317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 561222293 and 561222302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11224422 + ... + 11224471.

Almost surely, 2^561222325 is an apocalyptic number.

It is an amenable number.

561222325 is a deficient number, since it is larger than the sum of its proper divisors (134693389).

561222325 is a wasteful number, since it uses less digits than its factorization.

561222325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22448903 (or 22448898 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 561222325 is about 23690.1313841861. The cubic root of 561222325 is about 824.8563324974.

The spelling of 561222325 in words is "five hundred sixty-one million, two hundred twenty-two thousand, three hundred twenty-five".