504221441 has 2 divisors, whose sum is σ = 504221442. Its totient is φ = 504221440.

The previous prime is 504221437. The next prime is 504221453. The reversal of 504221441 is 144122405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 501580816 + 2640625 = 22396^2 + 1625^2 .

It is a cyclic number.

It is not a de Polignac number, because 504221441 - 2² = 504221437 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (504221461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252110720 + 252110721.

It is an arithmetic number, because the mean of its divisors is an integer number (252110721).

Almost surely, 2^504221441 is an apocalyptic number.

It is an amenable number.

504221441 is a deficient number, since it is larger than the sum of its proper divisors (1).

504221441 is an equidigital number, since it uses as much as digits as its factorization.

504221441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 504221441 is about 22454.8756620917. The cubic root of 504221441 is about 795.9279756259.

Adding to 504221441 its reverse (144122405), we get a palindrome (648343846).

The spelling of 504221441 in words is "five hundred four million, two hundred twenty-one thousand, four hundred forty-one".