2565775416 has 32 divisors (see below), whose sum is σ = 6473293200. Its totient is φ = 847411200.

The previous prime is 2565775391. The next prime is 2565775451. The reversal of 2565775416 is 6145775652.

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, 487785 + ... + 493016.

Almost surely, 2^2565775416 is an apocalyptic number.

It is an amenable number.

2565775416 is an abundant number, since it is smaller than the sum of its proper divisors (3907517784).

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

2565775416 is a wasteful number, since it uses less digits than its factorization.

2565775416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980919 (or 980915 counting only the distinct ones).

The product of its digits is 1764000, while the sum is 48.

The square root of 2565775416 is about 50653.4837498863. The cubic root of 2565775416 is about 1369.0087162003.

The spelling of 2565775416 in words is "two billion, five hundred sixty-five million, seven hundred seventy-five thousand, four hundred sixteen".