55555055554 has 16 divisors (see below), whose sum is σ = 87016948992. Its totient is φ = 26551106208.

The previous prime is 55555055539. The next prime is 55555055579. The reversal of 55555055554 is 45555055555.

It is a junction number, because it is equal to n+sod(n) for n = 55555055498 and 55555055507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358899 + ... + 489814.

It is an arithmetic number, because the mean of its divisors is an integer number (5438559312).

Almost surely, 2^55555055554 is an apocalyptic number.

55555055554 is a deficient number, since it is larger than the sum of its proper divisors (31461893438).

55555055554 is a wasteful number, since it uses less digits than its factorization.

55555055554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850161.

The product of its (nonzero) digits is 7812500, while the sum is 49.

Subtracting from 55555055554 its reverse (45555055555), we obtain a palindrome (9999999999).

The spelling of 55555055554 in words is "fifty-five billion, five hundred fifty-five million, fifty-five thousand, five hundred fifty-four".