550021164 has 48 divisors (see below), whose sum is σ = 1600064256. Its totient is φ = 142862400.

The previous prime is 550021159. The next prime is 550021183. The reversal of 550021164 is 461120055.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296707 + ... + 298554.

It is an arithmetic number, because the mean of its divisors is an integer number (33334672).

Almost surely, 2^550021164 is an apocalyptic number.

It is an amenable number.

550021164 is an abundant number, since it is smaller than the sum of its proper divisors (1050043092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550021164 is a wasteful number, since it uses less digits than its factorization.

550021164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595286 (or 595284 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 550021164 is about 23452.5300127726. The cubic root of 550021164 is about 819.3317796267.

The spelling of 550021164 in words is "five hundred fifty million, twenty-one thousand, one hundred sixty-four".