2565245463 has 16 divisors (see below), whose sum is σ = 3737117952. Its totient is φ = 1552256000.

The previous prime is 2565245437. The next prime is 2565245471. The reversal of 2565245463 is 3645425652.

It is a cyclic number.

It is not a de Polignac number, because 2565245463 - 2⁶ = 2565245399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565245363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39483 + ... + 81788.

It is an arithmetic number, because the mean of its divisors is an integer number (233569872).

Almost surely, 2^2565245463 is an apocalyptic number.

2565245463 is a deficient number, since it is larger than the sum of its proper divisors (1171872489).

2565245463 is a wasteful number, since it uses less digits than its factorization.

2565245463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121926.

The product of its digits is 864000, while the sum is 42.

The square root of 2565245463 is about 50648.2523193052. The cubic root of 2565245463 is about 1368.9144548673.

The spelling of 2565245463 in words is "two billion, five hundred sixty-five million, two hundred forty-five thousand, four hundred sixty-three".