555555555554 has 32 divisors (see below), whose sum is σ = 889397309376. Its totient is φ = 259358901760.

The previous prime is 555555555551. The next prime is 555555555559. The reversal of 555555555554 is 455555555555.

It is a happy number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 555555555493 and 555555555502.

It is not an unprimeable number, because it can be changed into a prime (555555555551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2040677 + ... + 2296839.

It is an arithmetic number, because the mean of its divisors is an integer number (27793665918).

Almost surely, 2^555555555554 is an apocalyptic number.

555555555554 is a deficient number, since it is larger than the sum of its proper divisors (333841753822).

555555555554 is a wasteful number, since it uses less digits than its factorization.

555555555554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256690.

The product of its digits is 195312500, while the sum is 59.

Subtracting from 555555555554 its reverse (455555555555), we obtain a palindrome (99999999999).

The spelling of 555555555554 in words is "five hundred fifty-five billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred fifty-four".