565745656 has 32 divisors (see below), whose sum is σ = 1213647840. Its totient is φ = 242195328.

The previous prime is 565745633. The next prime is 565745681. The reversal of 565745656 is 656547565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50766 + ... + 60898.

It is an arithmetic number, because the mean of its divisors is an integer number (37926495).

Almost surely, 2^565745656 is an apocalyptic number.

565745656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

565745656 is an abundant number, since it is smaller than the sum of its proper divisors (647902184).

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

565745656 is a wasteful number, since it uses less digits than its factorization.

565745656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11143 (or 11139 counting only the distinct ones).

The product of its digits is 3780000, while the sum is 49.

The square root of 565745656 is about 23785.4084682185. The cubic root of 565745656 is about 827.0664601351.

The spelling of 565745656 in words is "five hundred sixty-five million, seven hundred forty-five thousand, six hundred fifty-six".