22255567489 has 3 divisors (see below), whose sum is σ = 22255716673. Its totient is φ = 22255418306.

The previous prime is 22255567471. The next prime is 22255567507. The reversal of 22255567489 is 98476555222.

The square root of 22255567489 is 149183.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (22255567471) and next prime (22255567507).

It is not a de Polignac number, because 22255567489 - 2¹¹ = 22255565441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22255564489) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 74592 + ... + 223774.

Almost surely, 2^22255567489 is an apocalyptic number.

22255567489 is the 149183-rd square number.

22255567489 is the 74592-nd centered octagonal number.

It is an amenable number.

22255567489 is a deficient number, since it is larger than the sum of its proper divisors (149184).

22255567489 is an frugal number, since it uses more digits than its factorization.

22255567489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298366 (or 149183 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 55.

The spelling of 22255567489 in words is "twenty-two billion, two hundred fifty-five million, five hundred sixty-seven thousand, four hundred eighty-nine".