550555330 has 16 divisors (see below), whose sum is σ = 1067230584. Its totient is φ = 203281920.

The previous prime is 550555303. The next prime is 550555331. The reversal of 550555330 is 33555055.

It can be written as a sum of positive squares in 4 ways, for example, as 467727129 + 82828201 = 21627^2 + 9101^2 .

It is a super-2 number, since 2×550555330² = 606222342782817800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 550555292 and 550555301.

It is not an unprimeable number, because it can be changed into a prime (550555331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2117391 + ... + 2117650.

Almost surely, 2^550555330 is an apocalyptic number.

550555330 is a deficient number, since it is larger than the sum of its proper divisors (516675254).

550555330 is a wasteful number, since it uses less digits than its factorization.

550555330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4235061.

The product of its (nonzero) digits is 28125, while the sum is 31.

The square root of 550555330 is about 23463.9154874032. The cubic root of 550555330 is about 819.5969315902.

The spelling of 550555330 in words is "five hundred fifty million, five hundred fifty-five thousand, three hundred thirty".