550055555 has 8 divisors (see below), whose sum is σ = 754361952. Its totient is φ = 377180928.

The previous prime is 550055521. The next prime is 550055573. The reversal of 550055555 is 555550055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550055555 - 2¹² = 550051459 is a prime.

It is a super-2 number, since 2×550055555² = 605122227172716050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 15715873 = 550055555 / (5 + 5 + 0 + 0 + 5 + 5 + 5 + 5 + 5).

It is a Duffinian number.

550055555 is a modest number, since divided by 55555 gives 5500 as remainder.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7857902 + ... + 7857971.

It is an arithmetic number, because the mean of its divisors is an integer number (94295244).

Almost surely, 2^550055555 is an apocalyptic number.

550055555 is a deficient number, since it is larger than the sum of its proper divisors (204306397).

550055555 is a wasteful number, since it uses less digits than its factorization.

550055555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15715885.

The product of its (nonzero) digits is 78125, while the sum is 35.

The square root of 550055555 is about 23453.2632057887. The cubic root of 550055555 is about 819.3488559708.

The spelling of 550055555 in words is "five hundred fifty million, fifty-five thousand, five hundred fifty-five".