22305529 has 2 divisors, whose sum is σ = 22305530. Its totient is φ = 22305528.

The previous prime is 22305511. The next prime is 22305539. The reversal of 22305529 is 92550322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20748025 + 1557504 = 4555^2 + 1248^2 .

It is a cyclic number.

It is not a de Polignac number, because 22305529 - 2¹¹ = 22303481 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22305497 and 22305506.

It is not a weakly prime, because it can be changed into another prime (22305509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11152764 + 11152765.

It is an arithmetic number, because the mean of its divisors is an integer number (11152765).

Almost surely, 2^22305529 is an apocalyptic number.

It is an amenable number.

22305529 is a deficient number, since it is larger than the sum of its proper divisors (1).

22305529 is an equidigital number, since it uses as much as digits as its factorization.

22305529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 22305529 is about 4722.8729603918. The cubic root of 22305529 is about 281.4951019595.

The spelling of 22305529 in words is "twenty-two million, three hundred five thousand, five hundred twenty-nine".