55550055005555 has 16 divisors (see below), whose sum is σ = 72776929075200. Its totient is φ = 40368452744160.

The previous prime is 55550055005537. The next prime is 55550055005591.

55550055005555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55550055005555 - 2⁶ = 55550055005491 is a prime.

It is a super-2 number, since 2×55550055005555² (a number of 28 digits) contains 22 as substring.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394769765 + ... + 394910454.

It is an arithmetic number, because the mean of its divisors is an integer number (4548558067200).

Almost surely, 2^{55550055005555} is an apocalyptic number.

55550055005555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55550055005555 is a deficient number, since it is larger than the sum of its proper divisors (17226874069645).

55550055005555 is a wasteful number, since it uses less digits than its factorization.

55550055005555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789681514.

The product of its (nonzero) digits is 9765625, while the sum is 50.

The spelling of 55550055005555 in words is "fifty-five trillion, five hundred fifty billion, fifty-five million, five thousand, five hundred fifty-five".