22066523 has 2 divisors, whose sum is σ = 22066524. Its totient is φ = 22066522.

The previous prime is 22066501. The next prime is 22066529. The reversal of 22066523 is 32566022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22066523 - 2¹² = 22062427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22066492 and 22066501.

It is not a weakly prime, because it can be changed into another prime (22066529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11033261 + 11033262.

It is an arithmetic number, because the mean of its divisors is an integer number (11033262).

Almost surely, 2^22066523 is an apocalyptic number.

22066523 is a deficient number, since it is larger than the sum of its proper divisors (1).

22066523 is an equidigital number, since it uses as much as digits as its factorization.

22066523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 22066523 is about 4697.5017828629. The cubic root of 22066523 is about 280.4860732174.

The spelling of 22066523 in words is "twenty-two million, sixty-six thousand, five hundred twenty-three".