551066880 has 576 divisors, whose sum is σ = 2307594240. Its totient is φ = 108822528.

The previous prime is 551066839. The next prime is 551066891. The reversal of 551066880 is 88660155.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6639319 + ... + 6639401.

It is an arithmetic number, because the mean of its divisors is an integer number (4006240).

Almost surely, 2^551066880 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 551066880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1153797120).

551066880 is an abundant number, since it is smaller than the sum of its proper divisors (1756527360).

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

551066880 is a wasteful number, since it uses less digits than its factorization.

551066880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 551066880 is about 23474.8137372802. The cubic root of 551066880 is about 819.8506965924.

It can be divided in two parts, 5510 and 66880, that added together give a triangular number (72390 = T₃₈₀).

The spelling of 551066880 in words is "five hundred fifty-one million, sixty-six thousand, eight hundred eighty".