2565017316 has 81 divisors (see below), whose sum is σ = 6796473411. Its totient is φ = 815603184.

The previous prime is 2565017281. The next prime is 2565017327. The reversal of 2565017316 is 6137105652.

The square root of 2565017316 is 50646.

It is a perfect power (a square), and thus also a powerful number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6988965 + ... + 6989331.

Almost surely, 2^2565017316 is an apocalyptic number.

2565017316 is the 50646-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2565017316

2565017316 is an abundant number, since it is smaller than the sum of its proper divisors (4231456095).

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

2565017316 is a wasteful number, since it uses less digits than its factorization.

2565017316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The cubic root of 2565017316 is about 1368.8738709687.

Multiplying 2565017316 by its sum of digits (36), we get a square (92340623376 = 303876²).

2565017316 divided by its sum of digits (36) gives a square (71250481 = 8441²).

The spelling of 2565017316 in words is "two billion, five hundred sixty-five million, seventeen thousand, three hundred sixteen".