550808664 has 64 divisors (see below), whose sum is σ = 1575724800. Its totient is φ = 157175424.

The previous prime is 550808627. The next prime is 550808693. The reversal of 550808664 is 466808055.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 178059 + ... + 181125.

It is an arithmetic number, because the mean of its divisors is an integer number (24620700).

Almost surely, 2^550808664 is an apocalyptic number.

It is an amenable number.

550808664 is an abundant number, since it is smaller than the sum of its proper divisors (1024916136).

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

550808664 is a wasteful number, since it uses less digits than its factorization.

550808664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4152 (or 4148 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 550808664 is about 23469.3132409110. The cubic root of 550808664 is about 819.7226228206.

The spelling of 550808664 in words is "five hundred fifty million, eight hundred eight thousand, six hundred sixty-four".