22564641 has 8 divisors (see below), whose sum is σ = 32821344. Its totient is φ = 13675520.

The previous prime is 22564613. The next prime is 22564651. The reversal of 22564641 is 14646522.

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

It is a cyclic number.

It is not a de Polignac number, because 22564641 - 2⁷ = 22564513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22564599 and 22564608.

It is not an unprimeable number, because it can be changed into a prime (22564651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341856 + ... + 341921.

It is an arithmetic number, because the mean of its divisors is an integer number (4102668).

Almost surely, 2^22564641 is an apocalyptic number.

It is an amenable number.

22564641 is a deficient number, since it is larger than the sum of its proper divisors (10256703).

22564641 is a wasteful number, since it uses less digits than its factorization.

22564641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683791.

The product of its digits is 11520, while the sum is 30.

The square root of 22564641 is about 4750.2253630749. The cubic root of 22564641 is about 282.5809035519.

The spelling of 22564641 in words is "twenty-two million, five hundred sixty-four thousand, six hundred forty-one".