55446529169 has 2 divisors, whose sum is σ = 55446529170. Its totient is φ = 55446529168.

The previous prime is 55446529153. The next prime is 55446529213. The reversal of 55446529169 is 96192564455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44210529169 + 11236000000 = 210263^2 + 106000^2 .

It is a cyclic number.

It is not a de Polignac number, because 55446529169 - 2⁴ = 55446529153 is a prime.

It is a super-2 number, since 2×55446529169² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55446529109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27723264584 + 27723264585.

It is an arithmetic number, because the mean of its divisors is an integer number (27723264585).

Almost surely, 2^55446529169 is an apocalyptic number.

It is an amenable number.

55446529169 is a deficient number, since it is larger than the sum of its proper divisors (1).

55446529169 is an equidigital number, since it uses as much as digits as its factorization.

55446529169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664000, while the sum is 56.

The spelling of 55446529169 in words is "fifty-five billion, four hundred forty-six million, five hundred twenty-nine thousand, one hundred sixty-nine".