22522649 has 2 divisors, whose sum is σ = 22522650. Its totient is φ = 22522648.

The previous prime is 22522639. The next prime is 22522651. The reversal of 22522649 is 94622522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14440000 + 8082649 = 3800^2 + 2843^2 .

It is a cyclic number.

It is not a de Polignac number, because 22522649 - 2²⁰ = 21474073 is a prime.

Together with 22522651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22522609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11261324 + 11261325.

It is an arithmetic number, because the mean of its divisors is an integer number (11261325).

Almost surely, 2^22522649 is an apocalyptic number.

It is an amenable number.

22522649 is a deficient number, since it is larger than the sum of its proper divisors (1).

22522649 is an equidigital number, since it uses as much as digits as its factorization.

22522649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 22522649 is about 4745.8033039729. The cubic root of 22522649 is about 282.4055036752.

The spelling of 22522649 in words is "twenty-two million, five hundred twenty-two thousand, six hundred forty-nine".