551505560 has 16 divisors (see below), whose sum is σ = 1240887600. Its totient is φ = 220602208.

The previous prime is 551505527. The next prime is 551505587. The reversal of 551505560 is 65505155.

551505560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6893780 + ... + 6893859.

It is an arithmetic number, because the mean of its divisors is an integer number (77555475).

Almost surely, 2^551505560 is an apocalyptic number.

It is an amenable number.

551505560 is an abundant number, since it is smaller than the sum of its proper divisors (689382040).

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

551505560 is a wasteful number, since it uses less digits than its factorization.

551505560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13787650 (or 13787646 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 32.

The square root of 551505560 is about 23484.1555096197. The cubic root of 551505560 is about 820.0681878652.

The spelling of 551505560 in words is "five hundred fifty-one million, five hundred five thousand, five hundred sixty".