550055505 has 16 divisors (see below), whose sum is σ = 903875904. Its totient is φ = 285433920.

The previous prime is 550055501. The next prime is 550055521. The reversal of 550055505 is 505550055.

It is not a de Polignac number, because 550055505 - 2² = 550055501 is a prime.

It is a super-2 number, since 2×550055505² = 605122117161610050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (550055501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 494991 + ... + 496100.

It is an arithmetic number, because the mean of its divisors is an integer number (56492244).

Almost surely, 2^550055505 is an apocalyptic number.

It is an amenable number.

550055505 is a deficient number, since it is larger than the sum of its proper divisors (353820399).

550055505 is a wasteful number, since it uses less digits than its factorization.

550055505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991136.

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

The square root of 550055505 is about 23453.2621398389. The cubic root of 550055505 is about 819.3488311445.

The spelling of 550055505 in words is "five hundred fifty million, fifty-five thousand, five hundred five".