550897164 has 18 divisors (see below), whose sum is σ = 1392545700. Its totient is φ = 183632376.

The previous prime is 550897117. The next prime is 550897183. The reversal of 550897164 is 461798055.

550897164 is a `hidden beast` number, since 550 + 8 + 97 + 1 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7651314 + ... + 7651385.

It is an arithmetic number, because the mean of its divisors is an integer number (77363650).

Almost surely, 2^550897164 is an apocalyptic number.

It is an amenable number.

550897164 is an abundant number, since it is smaller than the sum of its proper divisors (841648536).

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

550897164 is a wasteful number, since it uses less digits than its factorization.

550897164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15302709 (or 15302704 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 550897164 is about 23471.1986059511. The cubic root of 550897164 is about 819.7665228605.

The spelling of 550897164 in words is "five hundred fifty million, eight hundred ninety-seven thousand, one hundred sixty-four".