530005550 has 24 divisors (see below), whose sum is σ = 999321456. Its totient is φ = 209096640.

The previous prime is 530005499. The next prime is 530005559. The reversal of 530005550 is 55500035.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530005559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68954 + ... + 76253.

It is an arithmetic number, because the mean of its divisors is an integer number (41638394).

Almost surely, 2^530005550 is an apocalyptic number.

530005550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

530005550 is a deficient number, since it is larger than the sum of its proper divisors (469315906).

530005550 is a wasteful number, since it uses less digits than its factorization.

530005550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145292 (or 145287 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 23.

The square root of 530005550 is about 23021.8494044245. The cubic root of 530005550 is about 809.2700582475.

Adding to 530005550 its reverse (55500035), we get a palindrome (585505585).

The spelling of 530005550 in words is "five hundred thirty million, five thousand, five hundred fifty".