550009550 has 24 divisors (see below), whose sum is σ = 1039794312. Its totient is φ = 216396000.

The previous prime is 550009529. The next prime is 550009561. The reversal of 550009550 is 55900055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87116 + ... + 93215.

It is an arithmetic number, because the mean of its divisors is an integer number (43324763).

Almost surely, 2^550009550 is an apocalyptic number.

550009550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

550009550 is a deficient number, since it is larger than the sum of its proper divisors (489784762).

550009550 is a wasteful number, since it uses less digits than its factorization.

550009550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180404 (or 180399 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 29.

The square root of 550009550 is about 23452.2824049174. The cubic root of 550009550 is about 819.3260127054.

The spelling of 550009550 in words is "five hundred fifty million, nine thousand, five hundred fifty".