2565775415 has 8 divisors (see below), whose sum is σ = 3518777760. Its totient is φ = 1759388832.

The previous prime is 2565775391. The next prime is 2565775451. The reversal of 2565775415 is 5145775652.

2565775415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2565775415 - 2³⁰ = 1492033591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2565775415.

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, 36653900 + ... + 36653969.

It is an arithmetic number, because the mean of its divisors is an integer number (439847220).

Almost surely, 2^2565775415 is an apocalyptic number.

2565775415 is a deficient number, since it is larger than the sum of its proper divisors (953002345).

2565775415 is an equidigital number, since it uses as much as digits as its factorization.

2565775415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73307881.

The product of its digits is 1470000, while the sum is 47.

The square root of 2565775415 is about 50653.4837400154. The cubic root of 2565775415 is about 1369.0087160224.

The spelling of 2565775415 in words is "two billion, five hundred sixty-five million, seven hundred seventy-five thousand, four hundred fifteen".