505444317 has 16 divisors (see below), whose sum is σ = 788113920. Its totient is φ = 282107952.

The previous prime is 505444307. The next prime is 505444319. The reversal of 505444317 is 713444505.

It is not a de Polignac number, because 505444317 - 2⁴ = 505444301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505444319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278967 + ... + 280772.

It is an arithmetic number, because the mean of its divisors is an integer number (49257120).

Almost surely, 2^505444317 is an apocalyptic number.

It is an amenable number.

505444317 is a deficient number, since it is larger than the sum of its proper divisors (282669603).

505444317 is a wasteful number, since it uses less digits than its factorization.

505444317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559792.

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 505444317 is about 22482.0888042014. The cubic root of 505444317 is about 796.5709044009.

The spelling of 505444317 in words is "five hundred five million, four hundred forty-four thousand, three hundred seventeen".