551322540500 has 24 divisors (see below), whose sum is σ = 1204088429544. Its totient is φ = 220529016000.

The previous prime is 551322540481. The next prime is 551322540521. The reversal of 551322540500 is 5045223155.

It can be written as a sum of positive squares in 4 ways, for example, as 4864504516 + 546458035984 = 69746^2 + 739228^2 .

It is a congruent number.

It is an unprimeable number.

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, 551322041 + ... + 551323040.

It is an arithmetic number, because the mean of its divisors is an integer number (50170351231).

Almost surely, 2^551322540500 is an apocalyptic number.

551322540500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

551322540500 is an abundant number, since it is smaller than the sum of its proper divisors (652765889044).

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

551322540500 is a wasteful number, since it uses less digits than its factorization.

551322540500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102645100 (or 1102645088 counting only the distinct ones).

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

Adding to 551322540500 its reverse (5045223155), we get a palindrome (556367763655).

The spelling of 551322540500 in words is "five hundred fifty-one billion, three hundred twenty-two million, five hundred forty thousand, five hundred".