5505555 has 32 divisors (see below), whose sum is σ = 9785088. Its totient is φ = 2620800.

The previous prime is 5505551. The next prime is 5505593. The reversal of 5505555 is 5555055.

5505555 = T₃₉₄ + T₃₉₅ + ... + T₄₅₄.

It is not a de Polignac number, because 5505555 - 2² = 5505551 is a prime.

It is a super-2 number, since 2×5505555² = 60622271716050, which contains 22 as substring.

5505555 is a modest number, since divided by 5555 gives 550 as remainder.

It is not an unprimeable number, because it can be changed into a prime (5505551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9792 + ... + 10338.

It is an arithmetic number, because the mean of its divisors is an integer number (305784).

Almost surely, 2^5505555 is an apocalyptic number.

5505555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5505555 is a deficient number, since it is larger than the sum of its proper divisors (4279533).

5505555 is a wasteful number, since it uses less digits than its factorization.

5505555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627.

The product of its (nonzero) digits is 15625, while the sum is 30.

The square root of 5505555 is about 2346.3919109987. The cubic root of 5505555 is about 176.5768243006.

It can be divided in two parts, 550 and 5555, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 5505555 in words is "five million, five hundred five thousand, five hundred fifty-five".