5565555 has 24 divisors (see below), whose sum is σ = 9701952. Its totient is φ = 2951424.

The previous prime is 5565551. The next prime is 5565607. The reversal of 5565555 is 5555655.

5565555 is a `hidden beast` number, since 556 + 55 + 55 = 666.

It is not a de Polignac number, because 5565555 - 2² = 5565551 is a prime.

5565555 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5565551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14982 + ... + 15348.

It is an arithmetic number, because the mean of its divisors is an integer number (404248).

Almost surely, 2^5565555 is an apocalyptic number.

5565555 is a deficient number, since it is larger than the sum of its proper divisors (4136397).

5565555 is a wasteful number, since it uses less digits than its factorization.

5565555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 712 counting only the distinct ones).

The product of its digits is 93750, while the sum is 36.

The square root of 5565555 is about 2359.1428528175. The cubic root of 5565555 is about 177.2159577949.

The spelling of 5565555 in words is "five million, five hundred sixty-five thousand, five hundred fifty-five".