42404224253 has 2 divisors, whose sum is σ = 42404224254. Its totient is φ = 42404224252.

The previous prime is 42404224217. The next prime is 42404224267. The reversal of 42404224253 is 35242240424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39109808644 + 3294415609 = 197762^2 + 57397^2 .

It is a cyclic number.

It is not a de Polignac number, because 42404224253 - 2¹⁶ = 42404158717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42404214253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21202112126 + 21202112127.

It is an arithmetic number, because the mean of its divisors is an integer number (21202112127).

Almost surely, 2^42404224253 is an apocalyptic number.

It is an amenable number.

42404224253 is a deficient number, since it is larger than the sum of its proper divisors (1).

42404224253 is an equidigital number, since it uses as much as digits as its factorization.

42404224253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61440, while the sum is 32.

Adding to 42404224253 its reverse (35242240424), we get a palindrome (77646464677).

The spelling of 42404224253 in words is "forty-two billion, four hundred four million, two hundred twenty-four thousand, two hundred fifty-three".