55123448634 has 24 divisors (see below), whose sum is σ = 126459676980. Its totient is φ = 17293630848.

The previous prime is 55123448593. The next prime is 55123448683. The reversal of 55123448634 is 43684432155.

55123448634 is a `hidden beast` number, since 5 + 5 + 1 + 2 + 3 + 4 + 4 + 8 + 634 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 49282668009 + 5840780625 = 221997^2 + 76425^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55123448634.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 90070689 + ... + 90071300.

Almost surely, 2^55123448634 is an apocalyptic number.

55123448634 is an abundant number, since it is smaller than the sum of its proper divisors (71336228346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55123448634 is a wasteful number, since it uses less digits than its factorization.

55123448634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180142014 (or 180142011 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 45.

The spelling of 55123448634 in words is "fifty-five billion, one hundred twenty-three million, four hundred forty-eight thousand, six hundred thirty-four".