2504865 has 64 divisors (see below), whose sum is σ = 4976640. Its totient is φ = 1059840.

The previous prime is 2504837. The next prime is 2504869. The reversal of 2504865 is 5684052.

It is not a de Polignac number, because 2504865 - 2⁷ = 2504737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2504869) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 53272 + ... + 53318.

It is an arithmetic number, because the mean of its divisors is an integer number (77760).

2^2504865 is an apocalyptic number.

It is an amenable number.

2504865 is a deficient number, since it is larger than the sum of its proper divisors (2471775).

2504865 is a wasteful number, since it uses less digits than its factorization.

2504865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 2504865 is about 1582.6765304382. The cubic root of 2504865 is about 135.8088613957.

It can be divided in two parts, 250 and 4865, that added together give a palindrome (5115).

The spelling of 2504865 in words is "two million, five hundred four thousand, eight hundred sixty-five".