565305552 has 180 divisors, whose sum is σ = 1859272740. Its totient is φ = 159860736.

The previous prime is 565305551. The next prime is 565305557. The reversal of 565305552 is 255503565.

565305552 is a `hidden beast` number, since 56 + 53 + 0 + 5 + 552 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 35569296 + 529736256 = 5964^2 + 23016^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565305551) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 796974 + ... + 797682.

It is an arithmetic number, because the mean of its divisors is an integer number (10329293).

Almost surely, 2^565305552 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 565305552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (929636370).

565305552 is an abundant number, since it is smaller than the sum of its proper divisors (1293967188).

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

565305552 is a wasteful number, since it uses less digits than its factorization.

565305552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 36.

The square root of 565305552 is about 23776.1551138951. The cubic root of 565305552 is about 826.8519410719.

The spelling of 565305552 in words is "five hundred sixty-five million, three hundred five thousand, five hundred fifty-two".