565555560 has 64 divisors (see below), whose sum is σ = 1713502080. Its totient is φ = 149318400.

The previous prime is 565555513. The next prime is 565555561. The reversal of 565555560 is 65555565.

It is not an unprimeable number, because it can be changed into a prime (565555561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11212 + ... + 35451.

It is an arithmetic number, because the mean of its divisors is an integer number (26773470).

Almost surely, 2^565555560 is an apocalyptic number.

It is an amenable number.

565555560 is an abundant number, since it is smaller than the sum of its proper divisors (1147946520).

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

565555560 is a wasteful number, since it uses less digits than its factorization.

565555560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46778 (or 46774 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 42.

The square root of 565555560 is about 23781.4120690930. The cubic root of 565555560 is about 826.9738156539.

The spelling of 565555560 in words is "five hundred sixty-five million, five hundred fifty-five thousand, five hundred sixty".