505444224234407 has 2 divisors, whose sum is σ = 505444224234408. Its totient is φ = 505444224234406.

The previous prime is 505444224234329. The next prime is 505444224234409. The reversal of 505444224234407 is 704432422444505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505444224234407 - 2²² = 505444220040103 is a prime.

Together with 505444224234409, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505444224234409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252722112117203 + 252722112117204.

It is an arithmetic number, because the mean of its divisors is an integer number (252722112117204).

Almost surely, 2^{505444224234407} is an apocalyptic number.

505444224234407 is a deficient number, since it is larger than the sum of its proper divisors (1).

505444224234407 is an equidigital number, since it uses as much as digits as its factorization.

505444224234407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17203200, while the sum is 50.

The spelling of 505444224234407 in words is "five hundred five trillion, four hundred forty-four billion, two hundred twenty-four million, two hundred thirty-four thousand, four hundred seven".