550605164 has 12 divisors (see below), whose sum is σ = 966291144. Its totient is φ = 274521984.

The previous prime is 550605157. The next prime is 550605173. The reversal of 550605164 is 461506055.

It is a self number, because there is not a number n which added to its sum of digits gives 550605164.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193562 + ... + 196385.

It is an arithmetic number, because the mean of its divisors is an integer number (80524262).

Almost surely, 2^550605164 is an apocalyptic number.

It is an amenable number.

550605164 is a deficient number, since it is larger than the sum of its proper divisors (415685980).

550605164 is a wasteful number, since it uses less digits than its factorization.

550605164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390304 (or 390302 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 550605164 is about 23464.9773918493. The cubic root of 550605164 is about 819.6216596898.

The spelling of 550605164 in words is "five hundred fifty million, six hundred five thousand, one hundred sixty-four".