55505444411 has 4 divisors (see below), whose sum is σ = 55796049024. Its totient is φ = 55214839800.

The previous prime is 55505444383. The next prime is 55505444413. The reversal of 55505444411 is 11444450555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11444450555 = 5 ⋅2288890111.

It is a cyclic number.

It is not a de Polignac number, because 55505444411 - 2¹⁸ = 55505182267 is a prime.

It is a super-2 number, since 2×55505444411² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55505444413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145302020 + ... + 145302401.

It is an arithmetic number, because the mean of its divisors is an integer number (13949012256).

Almost surely, 2^55505444411 is an apocalyptic number.

55505444411 is a deficient number, since it is larger than the sum of its proper divisors (290604613).

55505444411 is a wasteful number, since it uses less digits than its factorization.

55505444411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290604612.

The product of its (nonzero) digits is 160000, while the sum is 38.

Adding to 55505444411 its reverse (11444450555), we get a palindrome (66949894966).

The spelling of 55505444411 in words is "fifty-five billion, five hundred five million, four hundred forty-four thousand, four hundred eleven".