55055505489 has 16 divisors (see below), whose sum is σ = 73532083200. Its totient is φ = 36641356416.

The previous prime is 55055505473. The next prime is 55055505497. The reversal of 55055505489 is 98450555055.

It is not a de Polignac number, because 55055505489 - 2⁴ = 55055505473 is a prime.

It is a super-2 number, since 2×55055505489² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55055505419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4644432 + ... + 4656270.

It is an arithmetic number, because the mean of its divisors is an integer number (4595755200).

Almost surely, 2^55055505489 is an apocalyptic number.

It is an amenable number.

55055505489 is a deficient number, since it is larger than the sum of its proper divisors (18476577711).

55055505489 is a wasteful number, since it uses less digits than its factorization.

55055505489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14344.

The product of its (nonzero) digits is 4500000, while the sum is 51.

The spelling of 55055505489 in words is "fifty-five billion, fifty-five million, five hundred five thousand, four hundred eighty-nine".