5550555 has 32 divisors (see below), whose sum is σ = 9313344. Its totient is φ = 2820096.

The previous prime is 5550553. The next prime is 5550557.

5550555 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (5550553) and next prime (5550557).

It is not a de Polignac number, because 5550555 - 2¹ = 5550553 is a prime.

5550555 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5550553) 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 31 ways as a sum of consecutive naturals, for example, 40447 + ... + 40583.

It is an arithmetic number, because the mean of its divisors is an integer number (291042).

Almost surely, 2^5550555 is an apocalyptic number.

5550555 is a deficient number, since it is larger than the sum of its proper divisors (3762789).

5550555 is a wasteful number, since it uses less digits than its factorization.

5550555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255.

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

The square root of 5550555 is about 2355.9615871232. The cubic root of 5550555 is about 177.0566067469.

It can be divided in two parts, 5550 and 555, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 5550555 in words is "five million, five hundred fifty thousand, five hundred fifty-five".