55488493489 has 24 divisors (see below), whose sum is σ = 65665125792. Its totient is φ = 46480187520.

The previous prime is 55488493429. The next prime is 55488493507. The reversal of 55488493489 is 98439488455.

It is a de Polignac number, because none of the positive numbers 2^k-55488493489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55488493409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1020109 + ... + 1073125.

It is an arithmetic number, because the mean of its divisors is an integer number (2736046908).

Almost surely, 2^55488493489 is an apocalyptic number.

It is an amenable number.

55488493489 is a deficient number, since it is larger than the sum of its proper divisors (10176632303).

55488493489 is a wasteful number, since it uses less digits than its factorization.

55488493489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53617 (or 53604 counting only the distinct ones).

The product of its digits is 199065600, while the sum is 67.

The spelling of 55488493489 in words is "fifty-five billion, four hundred eighty-eight million, four hundred ninety-three thousand, four hundred eighty-nine".