22545529 has 2 divisors, whose sum is σ = 22545530. Its totient is φ = 22545528.

The previous prime is 22545521. The next prime is 22545577. The reversal of 22545529 is 92554522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22543504 + 2025 = 4748^2 + 45^2 .

It is a cyclic number.

It is not a de Polignac number, because 22545529 - 2³ = 22545521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22545494 and 22545503.

It is not a weakly prime, because it can be changed into another prime (22545521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11272764 + 11272765.

It is an arithmetic number, because the mean of its divisors is an integer number (11272765).

Almost surely, 2^22545529 is an apocalyptic number.

It is an amenable number.

22545529 is a deficient number, since it is larger than the sum of its proper divisors (1).

22545529 is an equidigital number, since it uses as much as digits as its factorization.

22545529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 34.

The square root of 22545529 is about 4748.2132428946. The cubic root of 22545529 is about 282.5011000558.

It can be divided in two parts, 225 and 45529, that added together give a palindrome (45754).

The spelling of 22545529 in words is "twenty-two million, five hundred forty-five thousand, five hundred twenty-nine".