551505053012 has 24 divisors (see below), whose sum is σ = 965971398336. Its totient is φ = 275513309568.

The previous prime is 551505052999. The next prime is 551505053129. The reversal of 551505053012 is 210350505155.

It is a self number, because there is not a number n which added to its sum of digits gives 551505053012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44351948 + ... + 44364380.

It is an arithmetic number, because the mean of its divisors is an integer number (40248808264).

Almost surely, 2^551505053012 is an apocalyptic number.

It is an amenable number.

551505053012 is a deficient number, since it is larger than the sum of its proper divisors (414466345324).

551505053012 is a wasteful number, since it uses less digits than its factorization.

551505053012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21167 (or 21165 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 32.

Adding to 551505053012 its reverse (210350505155), we get a palindrome (761855558167).

The spelling of 551505053012 in words is "five hundred fifty-one billion, five hundred five million, fifty-three thousand, twelve".