55159229 has 2 divisors, whose sum is σ = 55159230. Its totient is φ = 55159228.

The previous prime is 55159217. The next prime is 55159283. The reversal of 55159229 is 92295155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51912025 + 3247204 = 7205^2 + 1802^2 .

It is a cyclic number.

It is not a de Polignac number, because 55159229 - 2⁸ = 55158973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55159192 and 55159201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55159289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27579614 + 27579615.

It is an arithmetic number, because the mean of its divisors is an integer number (27579615).

Almost surely, 2^55159229 is an apocalyptic number.

It is an amenable number.

55159229 is a deficient number, since it is larger than the sum of its proper divisors (1).

55159229 is an equidigital number, since it uses as much as digits as its factorization.

55159229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40500, while the sum is 38.

The square root of 55159229 is about 7426.9259455040. The cubic root of 55159229 is about 380.6618866182.

The spelling of 55159229 in words is "fifty-five million, one hundred fifty-nine thousand, two hundred twenty-nine".