505543030 has 16 divisors (see below), whose sum is σ = 910812240. Its totient is φ = 202031712.

The previous prime is 505543021. The next prime is 505543037. The reversal of 505543030 is 30345505.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 505542986 and 505543004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505543037) 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 7 ways as a sum of consecutive naturals, for example, 11460 + ... + 33799.

It is an arithmetic number, because the mean of its divisors is an integer number (56925765).

Almost surely, 2^505543030 is an apocalyptic number.

505543030 is a deficient number, since it is larger than the sum of its proper divisors (405269210).

505543030 is a wasteful number, since it uses less digits than its factorization.

505543030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46383.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 505543030 is about 22484.2840668766. The cubic root of 505543030 is about 796.6227576468.

Adding to 505543030 its reverse (30345505), we get a palindrome (535888535).

The spelling of 505543030 in words is "five hundred five million, five hundred forty-three thousand, thirty".