550825920 has 280 divisors, whose sum is σ = 1991563200. Its totient is φ = 144488448.

The previous prime is 550825909. The next prime is 550825937. The reversal of 550825920 is 29528055.

550825920 is a `hidden beast` number, since 550 + 82 + 5 + 9 + 20 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2047546 + ... + 2047814.

Almost surely, 2^550825920 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 550825920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (995781600).

550825920 is an abundant number, since it is smaller than the sum of its proper divisors (1440737280).

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

550825920 is a wasteful number, since it uses less digits than its factorization.

550825920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 550825920 is about 23469.6808670250. The cubic root of 550825920 is about 819.7311829533.

The spelling of 550825920 in words is "five hundred fifty million, eight hundred twenty-five thousand, nine hundred twenty".