2504005 has 16 divisors (see below), whose sum is σ = 3553920. Its totient is φ = 1657152.

The previous prime is 2503999. The next prime is 2504009. The reversal of 2504005 is 5004052.

It is a happy number.

It is not a de Polignac number, because 2504005 - 2³ = 2503997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2504005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2504009) 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, 219 + ... + 2248.

It is an arithmetic number, because the mean of its divisors is an integer number (222120).

2^2504005 is an apocalyptic number.

It is an amenable number.

2504005 is a deficient number, since it is larger than the sum of its proper divisors (1049915).

2504005 is a wasteful number, since it uses less digits than its factorization.

2504005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508.

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 2504005 is about 1582.4048154628. The cubic root of 2504005 is about 135.7933171129.

Adding to 2504005 its reverse (5004052), we get a palindrome (7508057).

The spelling of 2504005 in words is "two million, five hundred four thousand, five".