424221450253 has 2 divisors, whose sum is σ = 424221450254. Its totient is φ = 424221450252.

The previous prime is 424221450187. The next prime is 424221450283. The reversal of 424221450253 is 352054122424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216557137449 + 207664312804 = 465357^2 + 455702^2 .

It is a cyclic number.

It is not a de Polignac number, because 424221450253 - 2²⁵ = 424187895821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424221450283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212110725126 + 212110725127.

It is an arithmetic number, because the mean of its divisors is an integer number (212110725127).

Almost surely, 2^424221450253 is an apocalyptic number.

It is an amenable number.

424221450253 is a deficient number, since it is larger than the sum of its proper divisors (1).

424221450253 is an equidigital number, since it uses as much as digits as its factorization.

424221450253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 424221450253 its reverse (352054122424), we get a palindrome (776275572677).

The spelling of 424221450253 in words is "four hundred twenty-four billion, two hundred twenty-one million, four hundred fifty thousand, two hundred fifty-three".