2504010221 has 2 divisors, whose sum is σ = 2504010222. Its totient is φ = 2504010220.

The previous prime is 2504010169. The next prime is 2504010259. The reversal of 2504010221 is 1220104052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2389840996 + 114169225 = 48886^2 + 10685^2 .

It is a cyclic number.

It is not a de Polignac number, because 2504010221 - 2¹⁰ = 2504009197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2504010221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2504010521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252005110 + 1252005111.

It is an arithmetic number, because the mean of its divisors is an integer number (1252005111).

Almost surely, 2^2504010221 is an apocalyptic number.

It is an amenable number.

2504010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2504010221 is an equidigital number, since it uses as much as digits as its factorization.

2504010221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 2504010221 is about 50040.0861410130. The cubic root of 2504010221 is about 1357.9341149189.

Adding to 2504010221 its reverse (1220104052), we get a palindrome (3724114273).

The spelling of 2504010221 in words is "two billion, five hundred four million, ten thousand, two hundred twenty-one".