22565256522 has 8 divisors (see below), whose sum is σ = 45130513056. Its totient is φ = 7521752172.

The previous prime is 22565256517. The next prime is 22565256529.

It is a happy number.

22565256522 is nontrivially palindromic in base 10.

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

22565256522 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (22565256529) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1880438038 + ... + 1880438049.

It is an arithmetic number, because the mean of its divisors is an integer number (5641314132).

Almost surely, 2^22565256522 is an apocalyptic number.

22565256522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22565256522 is a wasteful number, since it uses less digits than its factorization.

22565256522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3760876092.

The product of its digits is 720000, while the sum is 42.

The spelling of 22565256522 in words is "twenty-two billion, five hundred sixty-five million, two hundred fifty-six thousand, five hundred twenty-two".