551324420506 has 32 divisors (see below), whose sum is σ = 895197772800. Its totient is φ = 254042490240.

The previous prime is 551324420489. The next prime is 551324420509. The reversal of 551324420506 is 605024423155.

It is not an unprimeable number, because it can be changed into a prime (551324420509) 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 15 ways as a sum of consecutive naturals, for example, 1968966 + ... + 2231473.

It is an arithmetic number, because the mean of its divisors is an integer number (27974930400).

Almost surely, 2^551324420506 is an apocalyptic number.

551324420506 is a deficient number, since it is larger than the sum of its proper divisors (343873352294).

551324420506 is a wasteful number, since it uses less digits than its factorization.

551324420506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200574.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 551324420506 in words is "five hundred fifty-one billion, three hundred twenty-four million, four hundred twenty thousand, five hundred six".