22256560 has 20 divisors (see below), whose sum is σ = 51746688. Its totient is φ = 8902592.

The previous prime is 22256551. The next prime is 22256569. The reversal of 22256560 is 6565222.

It is an interprime number because it is at equal distance from previous prime (22256551) and next prime (22256569).

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (22256569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139024 + ... + 139183.

Almost surely, 2^22256560 is an apocalyptic number.

22256560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22256560 is an abundant number, since it is smaller than the sum of its proper divisors (29490128).

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

22256560 is a wasteful number, since it uses less digits than its factorization.

22256560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278220 (or 278214 counting only the distinct ones).

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

The square root of 22256560 is about 4717.6858733917. The cubic root of 22256560 is about 281.2889552626.

The spelling of 22256560 in words is "twenty-two million, two hundred fifty-six thousand, five hundred sixty".