55553635555 has 72 divisors (see below), whose sum is σ = 78682889376. Its totient is φ = 37492392960.

The previous prime is 55553635549. The next prime is 55553635573.

55553635555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55553635555 - 2¹⁹ = 55553111267 is a prime.

It is a super-3 number, since 3×55553635555³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 242592181 + ... + 242592409.

It is an arithmetic number, because the mean of its divisors is an integer number (1092817908).

Almost surely, 2^55553635555 is an apocalyptic number.

55553635555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55553635555 is a deficient number, since it is larger than the sum of its proper divisors (23129253821).

55553635555 is a wasteful number, since it uses less digits than its factorization.

55553635555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605 (or 365 counting only the distinct ones).

The product of its digits is 21093750, while the sum is 52.

The spelling of 55553635555 in words is "fifty-five billion, five hundred fifty-three million, six hundred thirty-five thousand, five hundred fifty-five".