22000553 has 2 divisors, whose sum is σ = 22000554. Its totient is φ = 22000552.

The previous prime is 22000529. The next prime is 22000579. The reversal of 22000553 is 35500022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21418384 + 582169 = 4628^2 + 763^2 .

It is a cyclic number.

It is not a de Polignac number, because 22000553 - 2²⁰ = 20951977 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22000513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000276 + 11000277.

It is an arithmetic number, because the mean of its divisors is an integer number (11000277).

Almost surely, 2^22000553 is an apocalyptic number.

It is an amenable number.

22000553 is a deficient number, since it is larger than the sum of its proper divisors (1).

22000553 is an equidigital number, since it uses as much as digits as its factorization.

22000553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 22000553 is about 4690.4747094511. The cubic root of 22000553 is about 280.2062808152.

Adding to 22000553 its reverse (35500022), we get a palindrome (57500575).

The spelling of 22000553 in words is "twenty-two million, five hundred fifty-three", and thus it is an aban number.