22553429 has 2 divisors, whose sum is σ = 22553430. Its totient is φ = 22553428.

The previous prime is 22553413. The next prime is 22553431. The reversal of 22553429 is 92435522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12974404 + 9579025 = 3602^2 + 3095^2 .

It is a cyclic number.

It is not a de Polignac number, because 22553429 - 2⁴ = 22553413 is a prime.

Together with 22553431, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22553395 and 22553404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22553449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11276714 + 11276715.

It is an arithmetic number, because the mean of its divisors is an integer number (11276715).

Almost surely, 2^22553429 is an apocalyptic number.

It is an amenable number.

22553429 is a deficient number, since it is larger than the sum of its proper divisors (1).

22553429 is an equidigital number, since it uses as much as digits as its factorization.

22553429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 32.

The square root of 22553429 is about 4749.0450619046. The cubic root of 22553429 is about 282.5340925258.

The spelling of 22553429 in words is "twenty-two million, five hundred fifty-three thousand, four hundred twenty-nine".