13555044445 has 8 divisors (see below), whose sum is σ = 16270547544. Its totient is φ = 10841039424.

The previous prime is 13555044443. The next prime is 13555044473. The reversal of 13555044445 is 54444055531.

It can be written as a sum of positive squares in 4 ways, for example, as 962361 + 13554082084 = 981^2 + 116422^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13555044445 - 2¹ = 13555044443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13555044398 and 13555044407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13555044443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354514 + ... + 390883.

It is an arithmetic number, because the mean of its divisors is an integer number (2033818443).

Almost surely, 2^13555044445 is an apocalyptic number.

It is an amenable number.

13555044445 is a deficient number, since it is larger than the sum of its proper divisors (2715503099).

13555044445 is an equidigital number, since it uses as much as digits as its factorization.

13555044445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749039.

The product of its (nonzero) digits is 480000, while the sum is 40.

Adding to 13555044445 its reverse (54444055531), we get a palindrome (67999099976).

The spelling of 13555044445 in words is "thirteen billion, five hundred fifty-five million, forty-four thousand, four hundred forty-five".