2565350775 has 36 divisors (see below), whose sum is σ = 4948282248. Its totient is φ = 1262940480.

The previous prime is 2565350773. The next prime is 2565350807. The reversal of 2565350775 is 5770535652.

2565350775 is a `hidden beast` number, since 25 + 6 + 53 + 507 + 75 = 666.

2565350775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2565350775 - 2¹ = 2565350773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2565350775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565350773) 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, 435597 + ... + 441446.

Almost surely, 2^2565350775 is an apocalyptic number.

2565350775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2565350775 is a deficient number, since it is larger than the sum of its proper divisors (2382931473).

2565350775 is a wasteful number, since it uses less digits than its factorization.

2565350775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877072 (or 877064 counting only the distinct ones).

The product of its (nonzero) digits is 1102500, while the sum is 45.

The square root of 2565350775 is about 50649.2919496413. The cubic root of 2565350775 is about 1368.9331874666.

The spelling of 2565350775 in words is "two billion, five hundred sixty-five million, three hundred fifty thousand, seven hundred seventy-five".