22553129 has 2 divisors, whose sum is σ = 22553130. Its totient is φ = 22553128.

The previous prime is 22553123. The next prime is 22553147. The reversal of 22553129 is 92135522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21641104 + 912025 = 4652^2 + 955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22553129 is a prime.

It is not a weakly prime, because it can be changed into another prime (22553123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11276564 + 11276565.

It is an arithmetic number, because the mean of its divisors is an integer number (11276565).

Almost surely, 2^22553129 is an apocalyptic number.

It is an amenable number.

22553129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22553129 is an equidigital number, since it uses as much as digits as its factorization.

22553129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

The square root of 22553129 is about 4749.0134765023. The cubic root of 22553129 is about 282.5328397879.

The spelling of 22553129 in words is "twenty-two million, five hundred fifty-three thousand, one hundred twenty-nine".