5565555655 has 16 divisors (see below), whose sum is σ = 7287274368. Its totient is φ = 4046868000.

The previous prime is 5565555647. The next prime is 5565555707.

5565555655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5565555655 - 2³ = 5565555647 is a prime.

It is a congruent number.

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, 494440 + ... + 505570.

It is an arithmetic number, because the mean of its divisors is an integer number (455454648).

Almost surely, 2^5565555655 is an apocalyptic number.

5565555655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5565555655 is a deficient number, since it is larger than the sum of its proper divisors (1721718713).

5565555655 is a wasteful number, since it uses less digits than its factorization.

5565555655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20238.

The product of its digits is 14062500, while the sum is 52.

The square root of 5565555655 is about 74602.6517960320. The cubic root of 5565555655 is about 1772.1596474701.

The spelling of 5565555655 in words is "five billion, five hundred sixty-five million, five hundred fifty-five thousand, six hundred fifty-five".