550465920 has 192 divisors, whose sum is σ = 1913736240. Its totient is φ = 145797120.

The previous prime is 550465837. The next prime is 550465921. The reversal of 550465920 is 29564055.

550465920 is a `hidden beast` number, since 5 + 504 + 65 + 92 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550465921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1307310 + ... + 1307730.

Almost surely, 2^550465920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550465920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (956868120).

550465920 is an abundant number, since it is smaller than the sum of its proper divisors (1363270320).

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

550465920 is a wasteful number, since it uses less digits than its factorization.

550465920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 550465920 is about 23462.0101440605. The cubic root of 550465920 is about 819.5525617664.

The spelling of 550465920 in words is "five hundred fifty million, four hundred sixty-five thousand, nine hundred twenty".