22854521 has 2 divisors, whose sum is σ = 22854522. Its totient is φ = 22854520.

The previous prime is 22854499. The next prime is 22854529. The reversal of 22854521 is 12545822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21058921 + 1795600 = 4589^2 + 1340^2 .

It is a cyclic number.

It is not a de Polignac number, because 22854521 - 2¹⁰ = 22853497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22854529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11427260 + 11427261.

It is an arithmetic number, because the mean of its divisors is an integer number (11427261).

Almost surely, 2^22854521 is an apocalyptic number.

It is an amenable number.

22854521 is a deficient number, since it is larger than the sum of its proper divisors (1).

22854521 is an equidigital number, since it uses as much as digits as its factorization.

22854521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6400, while the sum is 29.

The square root of 22854521 is about 4780.6402290907. The cubic root of 22854521 is about 283.7858308948.

The spelling of 22854521 in words is "twenty-two million, eight hundred fifty-four thousand, five hundred twenty-one".