551222205530 has 32 divisors (see below), whose sum is σ = 993556922688. Its totient is φ = 220187520000.

The previous prime is 551222205509. The next prime is 551222205559. The reversal of 551222205530 is 35502222155.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 28924505 + ... + 28943555.

It is an arithmetic number, because the mean of its divisors is an integer number (31048653834).

Almost surely, 2^551222205530 is an apocalyptic number.

551222205530 is a deficient number, since it is larger than the sum of its proper divisors (442334717158).

551222205530 is a wasteful number, since it uses less digits than its factorization.

551222205530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22862.

The product of its (nonzero) digits is 30000, while the sum is 32.

Adding to 551222205530 its reverse (35502222155), we get a palindrome (586724427685).

The spelling of 551222205530 in words is "five hundred fifty-one billion, two hundred twenty-two million, two hundred five thousand, five hundred thirty".