550566515 has 12 divisors (see below), whose sum is σ = 697284864. Its totient is φ = 417270096.

The previous prime is 550566487. The next prime is 550566517. The reversal of 550566515 is 515665055.

550566515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550566515 - 2⁶ = 550566451 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550566517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150707 + ... + 154316.

It is an arithmetic number, because the mean of its divisors is an integer number (58107072).

Almost surely, 2^550566515 is an apocalyptic number.

550566515 is a deficient number, since it is larger than the sum of its proper divisors (146718349).

550566515 is a wasteful number, since it uses less digits than its factorization.

550566515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305066 (or 305047 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 38.

The square root of 550566515 is about 23464.1538308970. The cubic root of 550566515 is about 819.6024818223.

The spelling of 550566515 in words is "five hundred fifty million, five hundred sixty-six thousand, five hundred fifteen".