551873280 has 288 divisors, whose sum is σ = 2060352000. Its totient is φ = 125841408.

The previous prime is 551873233. The next prime is 551873281. The reversal of 551873280 is 82378155.

It is not an unprimeable number, because it can be changed into a prime (551873281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1316911 + ... + 1317329.

It is an arithmetic number, because the mean of its divisors is an integer number (7154000).

Almost surely, 2^551873280 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 551873280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1030176000).

551873280 is an abundant number, since it is smaller than the sum of its proper divisors (1508478720).

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

551873280 is an equidigital number, since it uses as much as digits as its factorization.

551873280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 551873280 is about 23491.9833134625. The cubic root of 551873280 is about 820.2504093448.

The spelling of 551873280 in words is "five hundred fifty-one million, eight hundred seventy-three thousand, two hundred eighty".