55443123534 has 32 divisors (see below), whose sum is σ = 114730020000. Its totient is φ = 17840635904.

The previous prime is 55443123529. The next prime is 55443123577. The reversal of 55443123534 is 43532134455.

It is a junction number, because it is equal to n+sod(n) for n = 55443123492 and 55443123501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1097422 + ... + 1146830.

It is an arithmetic number, because the mean of its divisors is an integer number (3585313125).

Almost surely, 2^55443123534 is an apocalyptic number.

55443123534 is an abundant number, since it is smaller than the sum of its proper divisors (59286896466).

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

55443123534 is a wasteful number, since it uses less digits than its factorization.

55443123534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55892.

The product of its digits is 432000, while the sum is 39.

Adding to 55443123534 its reverse (43532134455), we get a palindrome (98975257989).

The spelling of 55443123534 in words is "fifty-five billion, four hundred forty-three million, one hundred twenty-three thousand, five hundred thirty-four".