551775005388 has 36 divisors (see below), whose sum is σ = 1395167209800. Its totient is φ = 183871910016.

The previous prime is 551775005339. The next prime is 551775005389. The reversal of 551775005388 is 883500577155.

551775005388 is a `hidden beast` number, since 5 + 5 + 1 + 7 + 7 + 500 + 53 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (551775005389) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2085613 + ... + 2335236.

Almost surely, 2^551775005388 is an apocalyptic number.

It is an amenable number.

551775005388 is an abundant number, since it is smaller than the sum of its proper divisors (843392204412).

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

551775005388 is a wasteful number, since it uses less digits than its factorization.

551775005388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4424326 (or 4424321 counting only the distinct ones).

The product of its (nonzero) digits is 5880000, while the sum is 54.

The spelling of 551775005388 in words is "five hundred fifty-one billion, seven hundred seventy-five million, five thousand, three hundred eighty-eight".