551503004120 has 64 divisors (see below), whose sum is σ = 1249966080000. Its totient is φ = 218991282048.

The previous prime is 551503004113. The next prime is 551503004153. The reversal of 551503004120 is 21400305155.

It is a self number, because there is not a number n which added to its sum of digits gives 551503004120.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3415529 + ... + 3573351.

It is an arithmetic number, because the mean of its divisors is an integer number (19530720000).

Almost surely, 2^551503004120 is an apocalyptic number.

It is an amenable number.

551503004120 is an abundant number, since it is smaller than the sum of its proper divisors (698463075880).

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

551503004120 is a wasteful number, since it uses less digits than its factorization.

551503004120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158472 (or 158468 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 551503004120 its reverse (21400305155), we get a palindrome (572903309275).

The spelling of 551503004120 in words is "five hundred fifty-one billion, five hundred three million, four thousand, one hundred twenty".