550420530 has 48 divisors (see below), whose sum is σ = 1452028032. Its totient is φ = 133434400.

The previous prime is 550420517. The next prime is 550420573. The reversal of 550420530 is 35024055.

It is a self number, because there is not a number n which added to its sum of digits gives 550420530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72186 + ... + 79445.

It is an arithmetic number, because the mean of its divisors is an integer number (30250584).

Almost surely, 2^550420530 is an apocalyptic number.

550420530 is an abundant number, since it is smaller than the sum of its proper divisors (901607502).

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

550420530 is a wasteful number, since it uses less digits than its factorization.

550420530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151663 (or 151652 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 550420530 is about 23461.0428156977. The cubic root of 550420530 is about 819.5300350837.

Adding to 550420530 its reverse (35024055), we get a palindrome (585444585).

The spelling of 550420530 in words is "five hundred fifty million, four hundred twenty thousand, five hundred thirty".