2565047 has 2 divisors, whose sum is σ = 2565048. Its totient is φ = 2565046.

The previous prime is 2565023. The next prime is 2565049. The reversal of 2565047 is 7405652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2565047 is a prime.

It is a super-2 number, since 2×2565047² = 13158932224418, which contains 22 as substring.

Together with 2565049, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₁₈₇₄₈₁ and since 2565047 and 187481 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2565049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282523 + 1282524.

It is an arithmetic number, because the mean of its divisors is an integer number (1282524).

2^2565047 is an apocalyptic number.

2565047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2565047 is an equidigital number, since it uses as much as digits as its factorization.

2565047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 2565047 is about 1601.5764109152. The cubic root of 2565047 is about 136.8879151439.

The spelling of 2565047 in words is "two million, five hundred sixty-five thousand, forty-seven".