13225105044555 has 8 divisors (see below), whose sum is σ = 21160168071312. Its totient is φ = 7053389357088.

The previous prime is 13225105044553. The next prime is 13225105044581. The reversal of 13225105044555 is 55544050152231.

It is a happy number.

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

It is not a de Polignac number, because 13225105044555 - 2¹ = 13225105044553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13225105044553) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 440836834804 + ... + 440836834833.

It is an arithmetic number, because the mean of its divisors is an integer number (2645021008914).

Almost surely, 2^{13225105044555} is an apocalyptic number.

13225105044555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13225105044555 is a deficient number, since it is larger than the sum of its proper divisors (7935063026757).

13225105044555 is an equidigital number, since it uses as much as digits as its factorization.

13225105044555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881673669645.

The product of its (nonzero) digits is 600000, while the sum is 42.

Adding to 13225105044555 its reverse (55544050152231), we get a palindrome (68769155196786).

The spelling of 13225105044555 in words is "thirteen trillion, two hundred twenty-five billion, one hundred five million, forty-four thousand, five hundred fifty-five".