505033424 has 80 divisors (see below), whose sum is σ = 1173401088. Its totient is φ = 206032896.

The previous prime is 505033423. The next prime is 505033429. The reversal of 505033424 is 424330505.

It is a junction number, because it is equal to n+sod(n) for n = 505033393 and 505033402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505033423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193472 + ... + 196064.

Almost surely, 2^505033424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505033424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (586700544).

505033424 is an abundant number, since it is smaller than the sum of its proper divisors (668367664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505033424 is a wasteful number, since it uses less digits than its factorization.

505033424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2692 (or 2686 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 505033424 is about 22472.9487161787. The cubic root of 505033424 is about 796.3549926244.

Adding to 505033424 its reverse (424330505), we get a palindrome (929363929).

The spelling of 505033424 in words is "five hundred five million, thirty-three thousand, four hundred twenty-four".