19550029 has 2 divisors, whose sum is σ = 19550030. Its totient is φ = 19550028.

The previous prime is 19550009. The next prime is 19550053. The reversal of 19550029 is 92005591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9796900 + 9753129 = 3130^2 + 3123^2 .

It is a cyclic number.

It is not a de Polignac number, because 19550029 - 2¹¹ = 19547981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19550009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9775014 + 9775015.

It is an arithmetic number, because the mean of its divisors is an integer number (9775015).

Almost surely, 2^19550029 is an apocalyptic number.

It is an amenable number.

19550029 is a deficient number, since it is larger than the sum of its proper divisors (1).

19550029 is an equidigital number, since it uses as much as digits as its factorization.

19550029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 19550029 is about 4421.5414732873. The cubic root of 19550029 is about 269.3906192819.

The spelling of 19550029 in words is "nineteen million, five hundred fifty thousand, twenty-nine".