565265380 has 12 divisors (see below), whose sum is σ = 1187057340. Its totient is φ = 226106144.

The previous prime is 565265357. The next prime is 565265417. The reversal of 565265380 is 83562565.

It can be written as a sum of positive squares in 2 ways, for example, as 154554624 + 410710756 = 12432^2 + 20266^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14131615 + ... + 14131654.

It is an arithmetic number, because the mean of its divisors is an integer number (98921445).

Almost surely, 2^565265380 is an apocalyptic number.

It is an amenable number.

565265380 is an abundant number, since it is smaller than the sum of its proper divisors (621791960).

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

565265380 is a wasteful number, since it uses less digits than its factorization.

565265380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28263278 (or 28263276 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 40.

The square root of 565265380 is about 23775.3103029172. The cubic root of 565265380 is about 826.8323545652.

The spelling of 565265380 in words is "five hundred sixty-five million, two hundred sixty-five thousand, three hundred eighty".