551505055555 has 16 divisors (see below), whose sum is σ = 662231959200. Its totient is φ = 440920234240.

The previous prime is 551505055531. The next prime is 551505055559. The reversal of 551505055555 is 555550505155.

It is a happy number.

It is not a de Polignac number, because 551505055555 - 2⁹ = 551505055043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551505055559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90570951 + ... + 90577039.

It is an arithmetic number, because the mean of its divisors is an integer number (41389497450).

Almost surely, 2^551505055555 is an apocalyptic number.

551505055555 is a deficient number, since it is larger than the sum of its proper divisors (110726903645).

551505055555 is a wasteful number, since it uses less digits than its factorization.

551505055555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14774.

The product of its (nonzero) digits is 1953125, while the sum is 46.

The spelling of 551505055555 in words is "five hundred fifty-one billion, five hundred five million, fifty-five thousand, five hundred fifty-five".