2565463 has 2 divisors, whose sum is σ = 2565464. Its totient is φ = 2565462.

The previous prime is 2565461. The next prime is 2565559. The reversal of 2565463 is 3645652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2565463 - 2¹ = 2565461 is a prime.

Together with 2565461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2565461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282731 + 1282732.

It is an arithmetic number, because the mean of its divisors is an integer number (1282732).

2^2565463 is an apocalyptic number.

2565463 is a deficient number, since it is larger than the sum of its proper divisors (1).

2565463 is an equidigital number, since it uses as much as digits as its factorization.

2565463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 31.

The square root of 2565463 is about 1601.7062776926. The cubic root of 2565463 is about 136.8953149167.

The spelling of 2565463 in words is "two million, five hundred sixty-five thousand, four hundred sixty-three".