55168429 has 2 divisors, whose sum is σ = 55168430. Its totient is φ = 55168428.

The previous prime is 55168397. The next prime is 55168433. The reversal of 55168429 is 92486155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55160329 + 8100 = 7427^2 + 90^2 .

It is a cyclic number.

It is not a de Polignac number, because 55168429 - 2⁵ = 55168397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55168391 and 55168400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55168439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27584214 + 27584215.

It is an arithmetic number, because the mean of its divisors is an integer number (27584215).

Almost surely, 2^55168429 is an apocalyptic number.

It is an amenable number.

55168429 is a deficient number, since it is larger than the sum of its proper divisors (1).

55168429 is an equidigital number, since it uses as much as digits as its factorization.

55168429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 40.

The square root of 55168429 is about 7427.5452876438. The cubic root of 55168429 is about 380.6830489557.

The spelling of 55168429 in words is "fifty-five million, one hundred sixty-eight thousand, four hundred twenty-nine".