2565452799 has 96 divisors (see below), whose sum is σ = 4721260544. Its totient is φ = 1306368000.

The previous prime is 2565452777. The next prime is 2565452801. The reversal of 2565452799 is 9972545652.

2565452799 is a `hidden beast` number, since 2 + 5 + 6 + 545 + 2 + 7 + 99 = 666.

It is not a de Polignac number, because 2565452799 - 2⁵ = 2565452767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565452719) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3415674 + ... + 3416424.

Almost surely, 2^2565452799 is an apocalyptic number.

2565452799 is a deficient number, since it is larger than the sum of its proper divisors (2155807745).

2565452799 is a wasteful number, since it uses less digits than its factorization.

2565452799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 914 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 54.

The square root of 2565452799 is about 50650.2991007951. The cubic root of 2565452799 is about 1368.9513347170.

The spelling of 2565452799 in words is "two billion, five hundred sixty-five million, four hundred fifty-two thousand, seven hundred ninety-nine".