22057543 has 2 divisors, whose sum is σ = 22057544. Its totient is φ = 22057542.

The previous prime is 22057531. The next prime is 22057559. The reversal of 22057543 is 34575022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22057543 - 2⁹ = 22057031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22057573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11028771 + 11028772.

It is an arithmetic number, because the mean of its divisors is an integer number (11028772).

Almost surely, 2^22057543 is an apocalyptic number.

22057543 is a deficient number, since it is larger than the sum of its proper divisors (1).

22057543 is an equidigital number, since it uses as much as digits as its factorization.

22057543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 22057543 is about 4696.5458583942. The cubic root of 22057543 is about 280.4480199986.

The spelling of 22057543 in words is "twenty-two million, fifty-seven thousand, five hundred forty-three".