13420255555 has 8 divisors (see below), whose sum is σ = 18404921952. Its totient is φ = 9202460928.

The previous prime is 13420255553. The next prime is 13420255573. The reversal of 13420255555 is 55555202431.

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 13420255555 - 2¹ = 13420255553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13420255553) 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, 191717902 + ... + 191717971.

It is an arithmetic number, because the mean of its divisors is an integer number (2300615244).

Almost surely, 2^13420255555 is an apocalyptic number.

13420255555 is a deficient number, since it is larger than the sum of its proper divisors (4984666397).

13420255555 is an equidigital number, since it uses as much as digits as its factorization.

13420255555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383435885.

The product of its (nonzero) digits is 150000, while the sum is 37.

Adding to 13420255555 its reverse (55555202431), we get a palindrome (68975457986).

The spelling of 13420255555 in words is "thirteen billion, four hundred twenty million, two hundred fifty-five thousand, five hundred fifty-five".