22561783 has 2 divisors, whose sum is σ = 22561784. Its totient is φ = 22561782.

The previous prime is 22561751. The next prime is 22561787. The reversal of 22561783 is 38716522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22561783 - 2⁵ = 22561751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22561787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11280891 + 11280892.

It is an arithmetic number, because the mean of its divisors is an integer number (11280892).

Almost surely, 2^22561783 is an apocalyptic number.

22561783 is a deficient number, since it is larger than the sum of its proper divisors (1).

22561783 is an equidigital number, since it uses as much as digits as its factorization.

22561783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The square root of 22561783 is about 4749.9245257162. The cubic root of 22561783 is about 282.5689726386.

The spelling of 22561783 in words is "twenty-two million, five hundred sixty-one thousand, seven hundred eighty-three".