551067280 has 80 divisors (see below), whose sum is σ = 1334044080. Its totient is φ = 211441664.

The previous prime is 551067269. The next prime is 551067299. The reversal of 551067280 is 82760155.

It can be written as a sum of positive squares in 8 ways, for example, as 136048896 + 415018384 = 11664^2 + 20372^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400674 + ... + 402046.

It is an arithmetic number, because the mean of its divisors is an integer number (16675551).

Almost surely, 2^551067280 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 551067280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (667022040).

551067280 is an abundant number, since it is smaller than the sum of its proper divisors (782976800).

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

551067280 is a wasteful number, since it uses less digits than its factorization.

551067280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588 (or 1582 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 551067280 is about 23474.8222570481. The cubic root of 551067280 is about 819.8508949593.

The spelling of 551067280 in words is "five hundred fifty-one million, sixty-seven thousand, two hundred eighty".