22056520 has 32 divisors (see below), whose sum is σ = 49996800. Its totient is φ = 8756928.

The previous prime is 22056509. The next prime is 22056521. The reversal of 22056520 is 2565022.

It is a junction number, because it is equal to n+sod(n) for n = 22056491 and 22056500.

It is not an unprimeable number, because it can be changed into a prime (22056521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3577 + ... + 7543.

It is an arithmetic number, because the mean of its divisors is an integer number (1562400).

Almost surely, 2^22056520 is an apocalyptic number.

22056520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22056520 is an abundant number, since it is smaller than the sum of its proper divisors (27940280).

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

22056520 is a wasteful number, since it uses less digits than its factorization.

22056520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4117 (or 4113 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 22056520 is about 4696.4369473038. The cubic root of 22056520 is about 280.4436843274.

The spelling of 22056520 in words is "twenty-two million, fifty-six thousand, five hundred twenty".