555655555 has 16 divisors (see below), whose sum is σ = 820661184. Its totient is φ = 351711360.

The previous prime is 555655543. The next prime is 555655577. The reversal of 555655555 is 555556555.

It is a happy number.

It is not a de Polignac number, because 555655555 - 2⁹ = 555655043 is a prime.

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, 610156 + ... + 611065.

It is an arithmetic number, because the mean of its divisors is an integer number (51291324).

Almost surely, 2^555655555 is an apocalyptic number.

555655555 is a deficient number, since it is larger than the sum of its proper divisors (265005629).

555655555 is a wasteful number, since it uses less digits than its factorization.

555655555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221246.

The product of its digits is 2343750, while the sum is 46.

The square root of 555655555 is about 23572.3472526603. The cubic root of 555655555 is about 822.1200124518.

The spelling of 555655555 in words is "five hundred fifty-five million, six hundred fifty-five thousand, five hundred fifty-five".