551056000 has 256 divisors, whose sum is σ = 1558103040. Its totient is φ = 192000000.

The previous prime is 551055991. The next prime is 551056001. The reversal of 551056000 is 650155.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (551056001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5455950 + ... + 5456050.

It is an arithmetic number, because the mean of its divisors is an integer number (6086340).

Almost surely, 2^551056000 is an apocalyptic number.

551056000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551056000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (779051520).

551056000 is an abundant number, since it is smaller than the sum of its proper divisors (1007047040).

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

551056000 is a wasteful number, since it uses less digits than its factorization.

551056000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 551056000 is about 23474.5819984084. The cubic root of 551056000 is about 819.8453009773.

The spelling of 551056000 in words is "five hundred fifty-one million, fifty-six thousand".