55544233244555 has 48 divisors (see below), whose sum is σ = 77974843689792. Its totient is φ = 37822588108800.

The previous prime is 55544233244543. The next prime is 55544233244557.

55544233244555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55544233244555 - 2⁸ = 55544233244299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55544233244555.

It is not an unprimeable number, because it can be changed into a prime (55544233244557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12005951 + ... + 15975960.

It is an arithmetic number, because the mean of its divisors is an integer number (1624475910204).

Almost surely, 2^{55544233244555} is an apocalyptic number.

55544233244555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55544233244555 is a deficient number, since it is larger than the sum of its proper divisors (22430610445237).

55544233244555 is a wasteful number, since it uses less digits than its factorization.

55544233244555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27982148 (or 27982137 counting only the distinct ones).

The product of its digits is 144000000, while the sum is 56.

It can be divided in two parts, 5554423 and 3244555, that added together give a palindrome (8798978).

The spelling of 55544233244555 in words is "fifty-five trillion, five hundred forty-four billion, two hundred thirty-three million, two hundred forty-four thousand, five hundred fifty-five".