22555456 has 112 divisors (see below), whose sum is σ = 58521600. Its totient is φ = 8363520.

The previous prime is 22555439. The next prime is 22555457. The reversal of 22555456 is 65455522.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22555457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113245 + ... + 113443.

Almost surely, 2^22555456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22555456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29260800).

22555456 is an abundant number, since it is smaller than the sum of its proper divisors (35966144).

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

22555456 is a wasteful number, since it uses less digits than its factorization.

22555456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 242 counting only the distinct ones).

The product of its digits is 60000, while the sum is 34.

The square root of 22555456 is about 4749.2584684348. The cubic root of 22555456 is about 282.5425565669.

It can be divided in two parts, 2255 and 5456, that multiplied together give a triangular number (12303280 = T₄₉₆₀).

The spelling of 22555456 in words is "twenty-two million, five hundred fifty-five thousand, four hundred fifty-six".