2563727565 has 32 divisors (see below), whose sum is σ = 4787712000. Its totient is φ = 1147051584.

The previous prime is 2563727563. The next prime is 2563727587. The reversal of 2563727565 is 5657273652.

It is a happy number.

2563727565 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 2563727565 - 2¹ = 2563727563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563727563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254815 + ... + 264684.

It is an arithmetic number, because the mean of its divisors is an integer number (149616000).

Almost surely, 2^2563727565 is an apocalyptic number.

It is an amenable number.

2563727565 is a deficient number, since it is larger than the sum of its proper divisors (2223984435).

2563727565 is a wasteful number, since it uses less digits than its factorization.

2563727565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519561.

The product of its digits is 2646000, while the sum is 48.

The square root of 2563727565 is about 50633.2653993400. The cubic root of 2563727565 is about 1368.6443985166.

The spelling of 2563727565 in words is "two billion, five hundred sixty-three million, seven hundred twenty-seven thousand, five hundred sixty-five".