22521330653 has 2 divisors, whose sum is σ = 22521330654. Its totient is φ = 22521330652.

The previous prime is 22521330641. The next prime is 22521330673. The reversal of 22521330653 is 35603312522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21774838969 + 746491684 = 147563^2 + 27322^2 .

It is a cyclic number.

It is not a de Polignac number, because 22521330653 - 2¹⁰ = 22521329629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22521330613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11260665326 + 11260665327.

It is an arithmetic number, because the mean of its divisors is an integer number (11260665327).

Almost surely, 2^22521330653 is an apocalyptic number.

It is an amenable number.

22521330653 is a deficient number, since it is larger than the sum of its proper divisors (1).

22521330653 is an equidigital number, since it uses as much as digits as its factorization.

22521330653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 32.

The spelling of 22521330653 in words is "twenty-two billion, five hundred twenty-one million, three hundred thirty thousand, six hundred fifty-three".