550055554 has 4 divisors (see below), whose sum is σ = 825083334. Its totient is φ = 275027776.

The previous prime is 550055521. The next prime is 550055573. The reversal of 550055554 is 455550055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 486423025 + 63632529 = 22055^2 + 7977^2 .

It is a super-2 number, since 2×550055554² = 605122224972493832, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137513887 + ... + 137513890.

Almost surely, 2^550055554 is an apocalyptic number.

550055554 is a deficient number, since it is larger than the sum of its proper divisors (275027780).

550055554 is a wasteful number, since it uses less digits than its factorization.

550055554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275027779.

The product of its (nonzero) digits is 62500, while the sum is 34.

The square root of 550055554 is about 23453.2631844697. The cubic root of 550055554 is about 819.3488554743.

The spelling of 550055554 in words is "five hundred fifty million, fifty-five thousand, five hundred fifty-four".