565605612 has 192 divisors, whose sum is σ = 1757790720. Its totient is φ = 155001600.

The previous prime is 565605583. The next prime is 565605613. The reversal of 565605612 is 216506565.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (565605613) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 818187 + ... + 818877.

It is an arithmetic number, because the mean of its divisors is an integer number (9155160).

Almost surely, 2^565605612 is an apocalyptic number.

565605612 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 565605612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (878895360).

565605612 is an abundant number, since it is smaller than the sum of its proper divisors (1192185108).

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

565605612 is a wasteful number, since it uses less digits than its factorization.

565605612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 773 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 565605612 is about 23782.4643802950. The cubic root of 565605612 is about 826.9982108241.

The spelling of 565605612 in words is "five hundred sixty-five million, six hundred five thousand, six hundred twelve".