504241421 has 2 divisors, whose sum is σ = 504241422. Its totient is φ = 504241420.

The previous prime is 504241393. The next prime is 504241447. The reversal of 504241421 is 124142405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 468073225 + 36168196 = 21635^2 + 6014^2 .

It is a cyclic number.

It is not a de Polignac number, because 504241421 - 2¹⁰ = 504240397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (504241481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252120710 + 252120711.

It is an arithmetic number, because the mean of its divisors is an integer number (252120711).

Almost surely, 2^504241421 is an apocalyptic number.

It is an amenable number.

504241421 is a deficient number, since it is larger than the sum of its proper divisors (1).

504241421 is an equidigital number, since it uses as much as digits as its factorization.

504241421 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 504241421 is about 22455.3205499276. The cubic root of 504241421 is about 795.9384884877.

Adding to 504241421 its reverse (124142405), we get a palindrome (628383826).

The spelling of 504241421 in words is "five hundred four million, two hundred forty-one thousand, four hundred twenty-one".