2564765827 has 4 divisors (see below), whose sum is σ = 2762055520. Its totient is φ = 2367476136.

The previous prime is 2564765807. The next prime is 2564765851. The reversal of 2564765827 is 7285674652.

2564765827 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2564765827 - 2¹¹ = 2564763779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2564765807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98644827 + ... + 98644852.

It is an arithmetic number, because the mean of its divisors is an integer number (690513880).

Almost surely, 2^2564765827 is an apocalyptic number.

2564765827 is a deficient number, since it is larger than the sum of its proper divisors (197289693).

2564765827 is a wasteful number, since it uses less digits than its factorization.

2564765827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197289692.

The product of its digits is 5644800, while the sum is 52.

The square root of 2564765827 is about 50643.5171270717. The cubic root of 2564765827 is about 1368.8291320930.

The spelling of 2564765827 in words is "two billion, five hundred sixty-four million, seven hundred sixty-five thousand, eight hundred twenty-seven".