2504104221 has 16 divisors (see below), whose sum is σ = 3540196800. Its totient is φ = 1569990528.

The previous prime is 2504104217. The next prime is 2504104247. The reversal of 2504104221 is 1224014052.

It is not a de Polignac number, because 2504104221 - 2² = 2504104217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2504104271) 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, 152526 + ... + 168143.

It is an arithmetic number, because the mean of its divisors is an integer number (221262300).

Almost surely, 2^2504104221 is an apocalyptic number.

It is an amenable number.

2504104221 is a deficient number, since it is larger than the sum of its proper divisors (1036092579).

2504104221 is a wasteful number, since it uses less digits than its factorization.

2504104221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320828.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2504104221 is about 50041.0253791826. The cubic root of 2504104221 is about 1357.9511068902.

Adding to 2504104221 its reverse (1224014052), we get a palindrome (3728118273).

The spelling of 2504104221 in words is "two billion, five hundred four million, one hundred four thousand, two hundred twenty-one".