2565247 has 16 divisors (see below), whose sum is σ = 2872800. Its totient is φ = 2280960.

The previous prime is 2565239. The next prime is 2565257. The reversal of 2565247 is 7425652.

It is a cyclic number.

It is not a de Polignac number, because 2565247 - 2³ = 2565239 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565257) 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 in 15 ways as a sum of consecutive naturals, for example, 28779 + ... + 28867.

It is an arithmetic number, because the mean of its divisors is an integer number (179550).

2^2565247 is an apocalyptic number.

2565247 is a deficient number, since it is larger than the sum of its proper divisors (307553).

2565247 is a wasteful number, since it uses less digits than its factorization.

2565247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186.

The product of its digits is 16800, while the sum is 31.

The square root of 2565247 is about 1601.6388481802. The cubic root of 2565247 is about 136.8914728268.

The spelling of 2565247 in words is "two million, five hundred sixty-five thousand, two hundred forty-seven".